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Tom Gurney BSc (Hons) is an art history expert with over 20 years experience
Published on June 19, 2020 / Updated on October 17, 2026
Email: tomgurney1@gmail.com / Phone: +44 7429 011000

Meet Franz Marc

Franz Marc's horses are blue, his cows yellow, and his forests sometimes seem to have been built from panes of coloured glass. Yet the animals are recognisably alive. A horse lowers its head; a cow gathers itself into an improbable leap; two foxes seem to disappear into the red and orange shapes around them. Marc used these familiar creatures to ask how a painting might show more than a human observer's passing view of nature. Across a remarkably short mature career, he changed the answer again and again.

Marc was born in Munich in 1880 and died near Verdun in 1916. His most familiar paintings belong chiefly to the years between 1910 and the outbreak of the First World War in 1914. During that span, he moved from close study of animals in the Bavarian countryside towards radiant, increasingly fractured compositions. He also helped shape Der Blaue Reiter (The Blue Rider), the exhibition and publication project that brought a striking range of modern art before German audiences. The energy of his paintings can make their compressed history easy to miss: Blue Horse I, Yellow Cow, Tiger and The Fate of the Animals appeared within about three years of one another. [1] [2]

At a Glance

  • Born8 February 1880, Munich [1]
  • Died4 March 1916, near Verdun [3]
  • Known forAnimal paintings and expressive colour [1]
  • Artistic circleDer Blaue Reiter, 1911–12 [4]
  • PlacesMunich, Lenggries, Sindelsdorf and Kochel [1]

Franz Marc in context

1900–1916
19001904190819121916

Die Brücke

German Expressionist group, 1905–13

Cubism

Paris movement, 1907–14

Der Blaue Reiter

exhibitions, almanac and circle, 1911–14
1900–1916
19001904190819121916

Maria Franck-Marc

shared Bavarian working life, 1909–16

August Macke

friendship and exchange, 1910–14

Wassily Kandinsky

Blue Rider collaboration, 1911–12

Robert Delaunay

Paris encounter, 1912
1900–1916
19001904190819121916

Tiger

1912

Contents

  1. Looking at an animal painting
  2. From Munich to the Bavarian countryside
  3. What colour could do
  4. Der Blaue Reiter and the wider art world
  5. Eight works that open the story
  6. Drawings, prints and works on paper
  7. The last years and the paintings' later lives
  8. Article Author
  9. Four career stages
  10. Essential works

Follow Franz Marc's career through four stages

1900–08

Learning to look beyond the academy

Marc studied in Munich and travelled to Paris in 1903 and 1907, testing French painting against his own close study of animals. [1].

1908–10

Animals in a shared landscape

Work around Lenggries and Sindelsdorf brought horses and pasture into sustained focus. Maria Franck was an artist and collaborator in this working life. [1]; [5].

1911–13

Colour, friendship and an international almanac

Marc worked with Kandinsky and Macke around the Blue Rider exhibitions and the 1912 almanac. Paintings of horses, cows, forests and deer pushed colour and form in different directions. [4].

1914–16

Late forms and the field sketchbook

Marc made nearly abstract paintings in 1914. After volunteering for service, he drew thirty-six sheets in a 1915 field sketchbook; he died near Verdun on 4 March 1916. [1]; [3].

Essential works

Blue foal bending its head among coloured hills

Blue Horse I

1911 · A solitary foal joins animal form to radiant colour.

Crouching tiger among angular coloured forms

Tiger

1912 · A crouching body fits into a tense field of facets.

Two foxes woven into red and orange planes

The Foxes

1913 · Animal bodies merge with a fractured red forest.

Watch: Franz Marc

Explore Marc’s blue horses, the Blue Rider circle and the move towards abstraction in English-language videos.

Looking at an animal painting

Start with the animal's posture. In Blue Horse I, the foal's head bends inward while its body rises almost the full height of the canvas. Its blue is concentrated and weighty; the hills and plants around it answer with reds, yellows, greens and violets. The horse occupies an imagined space made for the encounter of those forms and colours. Marc had watched and drawn horses for years, and the painting still depends on a felt knowledge of how one stands. What changed was his willingness to make its colour and setting serve the image's inner rhythm. The Lenbachhaus, which holds the painting, relates its inward-looking pose to an older tradition of contemplative figures in landscape. That is one art-historical reading of an image whose first invitation is simply to stop and follow the horse's curved neck and folded attention. [6]

In Yellow Cow, made in the same year, the animal seems to burst across the canvas. Its back makes a long yellow arc, and its dark hooves flick outward against a landscape of blue hills and other bright zones. The Guggenheim's account of the painting connects its exuberance to Marc's developing ideas about colour. A visitor need not translate yellow into a single fixed meaning to see how the cow's leap, the sweep of its body and the surrounding colour shapes carry the sense of motion. The two 1911 paintings show how much variety Marc could find within his chosen subject: a poised solitary horse and an animal that appears to set the whole field in motion. [7] [8]

Marc's animals were never a simple category of charming subjects. He believed they could offer a way of imagining life beyond the human habits he found limiting. That belief is visible in the dignity and concentration he gave them, but the paintings do not all promise peace. The compressed body of Tiger feels ready to spring. In The Fate of the Animals, trees, creatures and shards of colour are caught in a violent crossing of lines. Its alternate English title, Animal Destinies, preserves the broad scope of the German Tierschicksale: the work is about a whole living world under strain. Marc painted it in 1913, before the war. Its later history and reception brought new meanings to the image without making it a deliberate prophecy. [9] [10]

In a note published among his writings and tentatively dated to 1911–12, Marc asked how a horse, eagle, deer or dog might see the world. He questioned the painter's habit of placing an animal inside a landscape made for human eyes. This was an artistic challenge rather than a claim that he could recover an animal's literal vision. It urged him to think about the surroundings as part of that creature's existence. The question helps explain why the relation between bodies and landscape grows so important in his work. In an early pasture painting, it can be a shared curve; in the later forest pictures, animal and setting can appear to be made of the same shifting planes. [11]

From Munich to the Bavarian countryside

Marc grew up in Munich, where his father Wilhelm was a painter. He studied at the city's art academy from 1900 to 1902 and travelled to Paris in 1903 and 1907. French painting offered possibilities beyond the academic training he had received, but the decisive setting for much of his own work was closer to home: the hills, fields and villages south of Munich. He spent time on the Staffelalm near Kochel and worked at Lenggries. By 1909 he was often painting in Sindelsdorf, and in 1910 he and the artist Maria Franck gave up their Munich studio base and settled there fully. These places mattered because they gave him sustained contact with animals and room to test how they could become the centre of a painting. [1] [5]

The earlier horse groups show a painter working through observation and arrangement. In the grazing horses of 1910, backs, necks and the lines of the land begin to form one continuous pattern. The animals are still embedded in pasture rather than set apart as icons of colour. In the 1911 Large Red Horses, the three horses have become a tightly joined rhythm of rounded bodies. Their red coats carry across the group as a deliberate pictorial force. The painting is also known as Grazing Horses IV, a title that places it within the series and helps distinguish it from the separate 1910 Grazing Horses III. [12] [13]

The choice of animals also grew from the company Marc kept. Maria Franck-Marc was a practising artist with her own work and place in the Munich avant-garde; she was present in the shared life from which many of these images emerged. In January 1910, August Macke visited Marc's studio. Their friendship became an exchange of paintings, ideas and searching letters. Macke connected Marc with the collector Bernhard Koehler, whose support gave the painter a more secure foundation. Marc's encounter with Wassily Kandinsky at the start of 1911 opened another close artistic partnership. The story of the blue horses is therefore also a story of conversations, disagreement, patronage and collaboration, not of an isolated painter discovering colour in the countryside. [1] [14] [5]

What colour could do

Marc's use of blue, yellow and red was deliberate, but it was also experimental. In a letter to Macke dated 12 December 1910, he set out personal associations: blue with a severe, spiritual masculine principle, yellow with a gentle and sensuous feminine one, and red with heavy matter. The letter goes on to consider what happens when colours meet and mix. Marc was thinking about relationships on a canvas as much as attaching labels to isolated colours. His terms reflect the gendered language and intellectual climate of his time; they do not supply an automatic translation for every blue animal or yellow field. [15]

He wanted colours to work together with force and clarity. The Franz Marc Museum describes his experiments with complementary contrasts and his use of a prism to test their optical effect. A patch of blue could intensify an orange beside it; violet and yellow might steady or disturb one another. Marc was absorbing ideas from contemporary colour study while judging them against what happened as he painted. In the snow pictures of 1910–11, white ground becomes a testing place for these relationships. By the time of Blue Horse I, colour helps hold the whole image together, from the animal to the hills around it. [16]

This is one reason his paintings reward slow looking. The first surprise of a blue horse soon gives way to smaller discoveries: how a flank echoes a hill, how the curve of a neck leads into another colour, or how several animals make one larger shape. The colour is expressive because it is organised. On the Style and Colour page, those experiments can be followed in greater detail, including the distance between what Marc wrote about colour and what individual paintings actually do.

Der Blaue Reiter and the wider art world

Marc and Kandinsky's partnership took public form in Der Blaue Reiter. Their first exhibition under that name opened in Munich in December 1911. A second exhibition, focused on graphic work, followed in 1912. They also edited an almanac published that May. Its pages brought together art from different times and cultures alongside essays, music and images by contemporary artists. Marc contributed writing and helped choose and present work; the project made visible an expansive idea of what modern art could learn from. The Blue Rider is best understood through these exhibitions, the almanac and the network around them, rather than as a club with a settled roster. [2] [4]

The exchange extended beyond Munich. Marc and Macke visited Robert Delaunay in Paris in 1912. Delaunay's colour and the possibilities opened by Cubism and Futurism added to Marc's growing interest in breaking a form into moving planes. In 1913, Marc and Macke advised the dealer Herwarth Walden on the selection and display of the First German Autumn Salon in Berlin. In these years Marc was making a deeply individual art while taking an active part in the exhibitions and arguments that shaped modernism around him. [1] [17]

His own work shows why those exchanges mattered. In Deer in a Monastery Garden, animals inhabit a setting of interlocking light and shade. In The Foxes, orange and red animals are harder to separate from the facets of the forest. The Bewitched Mill turns buildings, water and vegetation into a dense, animated field. The animals do not simply vanish as his art develops; their contours and the places they occupy become more closely woven together. His later compositions could approach abstraction without losing their roots in what he had seen and drawn. [18] [19] [20]

Eight works that open the story

These paintings make a useful path through Marc's changing art. Each has its own page, because the colour, structure and physical history of one work rarely explain the next.

  1. Blue Horse I (1911) — a solitary blue foal whose lowered head and upright body make a concentrated image of presence. The Lenbachhaus holds the painting, Blaues Pferd I, under accession G 13324. [6]
  2. Yellow Cow (1911) — a yellow animal leaps across a landscape whose blue and red zones seem to move with it. It belongs to the Guggenheim Museum's Founding Collection. [7]
  3. The Large Blue Horses (1911) — three horses form a sweeping group of blue bodies and curved lines. The painting is at the Walker Art Center in Minneapolis. [21]
  4. Tiger (1912) — the animal's compact body is fitted into a framework of yellow, black and green facets. This is the Lenbachhaus painting, distinct from Marc's woodcut also titled Tiger. [9] [22]
  5. The Fate of the Animals (1913) — creatures and trees meet in a forceful crossing of coloured forms. A 1917 fire and Paul Klee's 1919 repair are still part of the painting we see at Kunstmuseum Basel. [10]
  6. The Foxes (1913) — two foxes emerge from a red and orange forest of fractured planes. Its later provenance includes Nazi-era loss, restitution and a 2022 sale; the work has a story beyond its former Düsseldorf home. [19] [23]
  7. The Tower of Blue Horses (1913) — the great stacked-horse canvas is missing. Preparatory images and records preserve knowledge of its composition, while its fate after the Second World War remains uncertain. [24]
  8. Fighting Forms (1914) — large red and blue forms confront one another in a painting close to abstraction. It is held by the Bavarian State Painting Collections in Munich. The work's title invites interpretation; its colours do not establish that Marc painted a conscious prediction of war. [25]

The list shows both the familiarity and the range of Marc's work. It begins with the particular weight of a foal's body and ends with forms that can be read without identifying a particular animal. The progression is real, but it was never a straight line. Animal pictures, drawings and abstract experiments overlapped. The paintings catalogue lets a visitor follow the wider sequence and compare works of similar subject or title.

Drawings, prints and works on paper

Painting is only part of the story. Marc drew animals repeatedly, sometimes to study a pose and sometimes to test how a body might become an arrangement of lines. Sketchbooks, postcards and watercolours show ideas moving between small sheets and large canvases. A painted postcard of blue horses, for example, has its own history and must be distinguished from the missing Tower of Blue Horses painting. The drawings guide follows such works on paper and the questions they raise about preparation, experiment and finished images. [26] [27]

Printmaking gave Marc another kind of line. A woodcut is made by cutting away parts of a block, inking the remaining raised surface and pressing it onto paper. The medium's strong contrasts and repeated impressions could make an animal's outline both economical and forceful. The Franz Marc Museum's collection includes prints and blocks, while the Lenbachhaus records individual sheets such as The Birth of the Horses. A print with the same title as a painting is a distinct object, often with its own date, state and collection history. The prints page introduces the techniques and a route through the surviving work. [26] [28]

The last years and the paintings' later lives

By 1914 Marc was making compositions in which large colour forms seemed to contend across the whole surface. He bought a house in Kochel, but the war interrupted the life and work he had built. Marc served at the front; in 1915 he made thirty-six drawings in a field sketchbook. He died on 4 March 1916 during a reconnaissance ride near Verdun. His early belief that war might bring a renewal of culture is a difficult part of the historical record. The losses of the war, including Marc's own death, give that belief its full and painful context. [1] [17]

The paintings have continued to change in meaning and, at times, in physical appearance. Fire damaged The Fate of the Animals in 1917; Klee's repair remains visibly darker than Marc's surviving paint. The Tower of Blue Horses passed through Nationalgalerie ownership, Nazi confiscation and wartime control before disappearing from view. The Foxes was returned after a long provenance investigation and sold in 2022. These histories should not be folded into Marc's intentions, yet they affect what visitors can see, where a painting is held and how its story is told. [10] [24] [23]

Marc's career remains compelling because each of its bold changes began with the same demanding question: how could an animal and its world be made present in paint? His answer might be a quiet blue horse, a leaping cow, a forest of broken colour or a canvas that seems almost to have shed its visible subject. The biography follows the life behind those choices. The Blue Rider guide opens the circle of artists, exhibitions and ideas around him. Together with the artwork pages, they make room for the distinct stories carried by these unforgettable paintings.

Artwork Directory

This source-checked selection contains 192 identified works and print designs from the current Franz Marc research set. It is a curated selection, not a complete catalogue raisonné. Some works link to their article here; others link to a collection record. Unresolved identifications are omitted.

192 artworks

NameDateMedium
Abstract Composition1913 - 14Drawing
Alpine Herdsman in the Hut1902Painting
Altar Sheep from Lana (postcard to Gabriele Münter)11. April 1913Drawing
Animal Legend1912Print
Animals in Landscape1914Painting
Bathing Girls1968Painting
Belt Clasp (Lioness Pierced by an Arrow)1909/10Sculpture
Bewitched Mill1913Painting
Birds1914Painting
Birth of the Horses1913Print
Blue Fox1911Painting
Blue Horse1911Painting
Blue Horse II1911Painting
Blue Horse with Rainbow1913Drawing
Bluish Mythical Creature (Messages to Prince Jussuff)1913Drawing
Boy with Sled in a Winter Landscapeum 1902Painting
Broken Forms1914Painting
Bull1911Painting
Caliban1914Drawing
Cat Behind a Tree1910–11Painting
Cat behind a Tree1910-1911Drawing
Cat on a Yellow Pillow1912Painting
Cats1909–10Painting
Chimera1914Sculpture
Colored Flowers1913–14Drawing
Conciliation1912Print
Cottages on the Dachau Marsh1902Painting
Cows Yellow, Red & Green1911Painting
Crouching Deer1911Painting
Cup (alabaster)—Sculpture
Dead Deer1913Drawing
Dead Sparrow1905Painting
Deer at Dusk1909Painting
Deer in a Monastery Garden1912Painting
Deer in the Forest1913Painting
Deer in the Forest II1914Painting
Deer in the Forest II (Lenbachhaus, 1912)1912Painting
Deer in the Reeds1909Painting
Deer in the Snow1911Painting
Design for a Keyhole Escutcheon: Two Mythical Animals1913Drawing
Dog1912Painting
Dog Lying in the Snow1911Painting
Donkey Frieze1911–12Painting
Dream1912Painting
Dream Rock1913Drawing
Dreaming Horse1913Drawing
Elephant1907Drawing
Elephant (1913 MoMA pencil drawing)1913Drawing
Elephant, Horse and Cow1913–14Painting
Fabulous Beast II (Horse)1913Drawing
Fairy Animals I1913Drawing
Fate of the Animals1913Painting
Female Nude Study1909Painting
Female Torso1910Sculpture
Fighting Forms1914Painting
Fire Ox, Green Horse and Ibex1913Drawing
Forest with Squirrel1913Painting
Four Foxes1913Drawing
Fox1913Painting
Fox and Gazelle (Messages to Prince Jussuff)1913Drawing
From King Jussuff's Nights1913Drawing
From Prince Jussuff's Hunting Grounds1913Drawing
From the Ancient Royal City of Thebes1913Drawing
Gazelles1913–14Drawing
Genesis II (NGA impression)1914Print
Girl with Cat II1912Painting
Grazing Horses1910Painting
Grazing Horses I1910Painting
Hay Wagon1905Painting
Haystacks in the Snow1911Painting
Horse (1913 Art Institute drawing)1913Drawing
Horse and Dog1913Drawing
Horse in a Landscape1910Painting
Horses (museum title partly redacted)1913Drawing
Horses by the Sea1907Painting
In the Rain1912Painting
Indersdorf1904Painting
Inside a Forest with a Bird1912Painting
Jumping Dog Schlick1908Painting
Keyhole Fitting (Panther Leaping at a Horse)1910Sculpture
Keyhole Fitting Shaped Like a Sword Guard (Adam and Eve)1910Sculpture
King Abigail's Toy Horse1913Drawing
King Jussuff's Three Panthers1913Drawing
Lamb1913–14Painting
Landscape with Red Animal (postcard to Alfred Kubin)18. März 1913Drawing
Larch Sapling1908Painting
Large Blue Horses1911Painting
Large Lenggries Horses1908Painting
Large Red Horses1911Painting
Leaping Horse1912Painting
Leaping Horse (1912 drawing)1912Drawing
Little Blue Horse1912Painting
Little Yellow Horses1912Painting
Long Yellow Horse1913Painting
Mandrill1913Painting
Mandrill (1913 sketchbook study)1913Drawing
Monkey1912Painting
Monkey and Humanum 1912Painting
Monkey Frieze1911Painting
Mortar and Pestle1910Sculpture
Mother Mare of the Blue Horses1913Drawing
Mountain Goats1914Painting
Mountains1911–12Painting
New Year's Card1913Drawing
New Year's Greeting (postcard to Gabriele Münter)30. Dezember 1912Drawing
Nude Lying in the Flowers1910Painting
Nude with Cat1910Painting
Orpheus Among the Animals (Design for a Tapestry)Um 1907/09Painting
Park Landscape1908Drawing
Picture with Cattle1913Painting
Playing Dogs1912Drawing
Portrait of a Woman Painter with Palette (Maria Marc Painting in the Snow)1906Painting
Portrait of Henri Rousseau (reverse-glass painting)1911Painting
Portrait of the Artist's Father1902Painting
Portrait of the Artists Mother1902Painting
Prince Juss's Four Companion Dogs1914Drawing
Prince Jussuf's Lemon Horse and Fire Ox1913Drawing
Prince Jussuff's Warhorse7. April 1913 (Poststempel)Drawing
Reclining Deer (pencil study)1911/12Drawing
Red and Blue Horse1912Drawing
Red and Blue Horse (1913 postcard)5. April 1913Drawing
Red Bull1912Drawing
Red Deer1913Painting
Red Deer Grazing1910Painting
Red Deers1912Painting
Red Horse and Yellow Cow (postcard to Alfred Kubin)21. Mai 1913Drawing
Red Woman1912Painting
Resting Horses1911–12Print
Rising Mist1903Painting
Scene from Jussuff's Peaceful Days1. Mai 1913 (Poststempel)Drawing
Seated Mythical Animal1912/13Drawing
Seated Saint (1913 postcard)8. Juni 1913Drawing
Self Portrait1904Painting
Sheaf of Grain1907Painting
Sheep1912Painting
Shepherd Boy1902Painting
Shepherds1912Painting
Siberian Sheepdogs1909/1910Painting
Sleeping Animals1913Painting
Small Composition I1913Painting
Small Composition II1913/14Painting
Small Composition III1913–14Painting
Small Horse Picture1909Painting
Small Horse Study1905Painting
Small Reed Stack near Brunnenbach1908Drawing
St. Julian the Hospitaler1913Drawing
Stables1913Painting
Staffelalm (II) with Sheep1902Painting
Standing Horse with Trees1910Drawing
Tale of Creation (Cleveland impression)1914Print
The Blue Rider and His Horse1912Drawing
The First Animals1913Drawing
The Holy Little Calf1913Drawing
The Little Violet Elephant1913Drawing
The Panther1908Sculpture
The Riding School1913Print
The Trees Showed Their Rings, the Animals Their Veins (work on paper)1913Drawing
The Unfortunate Land of Tyrol (paper study)1913Drawing
The Watering Place at Ruby Mountain1913Drawing
The World Cow1913Painting
Three Cats1913Painting
Three Horses1912Drawing
Tiger1912Painting
Tower of Blue Horses1913Painting
Tower of Blue Horses postcard1912Drawing
Two Animals (postcard to Kandinsky)15. Februar 1913Drawing
Two Bathing Girls1909Painting
Two Blue Horses—Drawing
Two Blue Horses1913Drawing
Two Blue Horses before a Red Rock1913Drawing
Two Cats (colour lithograph)1909/10Print
Two Cats Blue and Yellow1912Painting
Two Cows in a Mountain Landscape1913Drawing
Two Horses (1913)1913Drawing
Two Horses (bronze sculpture)1908/09Sculpture
Two Horses, Red and Blue (1912)1912Drawing
Two Sheep (postcard to Kandinsky)1. Mai 1913Drawing
Two Women on the Hillside1906Painting
Tyrol1914Painting
Unfortunate Land of Tyrol1913Painting
Untitled (Sheep with Bent Head)—Sculpture
Untitled (Standing Sheep)—Sculpture
Vermilion Greeting (postcard to Kandinsky)19. April 1913Drawing
Water Pool1906Painting
Waterfall1912Painting
Weasels Playing1911Painting
White Pigs1912Painting
Wild Boars in the Water1910–11Drawing
Wild Pigs Boar and Sow1913Painting
Wolves Balkan War1913Painting
Yellow Cow1911Painting
Young Oak Tree1909Painting

Discussion

Marc’s animal paintings change markedly in mood, scale and construction across his short career.

Reader Insights

Observation

Which posture stays with you most: the blue horse’s stillness, the cow’s leap or the tiger’s tension?

Comparison

How does a grouped horse painting organise movement differently from a single animal?

Interpretation

Where does colour feel most closely tied to the animal’s body rather than a fixed symbol?

Join the Conversation

Which detail changed the way you saw this work? Share a close observation or a comparison with another Marc picture.


References

  1. Lenbachhaus, Franz Marc biography. View source.
  2. Berlin State Museums, Blue Rider chronology. View source.
  3. German National Library, Franz Marc. View source.
  4. Lenbachhaus, Blue Rider collaboration. View source.
  5. Franz Marc Museum. View source.
  6. Lenbachhaus, Blaues Pferd I. View source.
  7. Solomon R. Guggenheim Museum, Yellow Cow. View source.
  8. Guggenheim teaching materials. View source.
  9. Lenbachhaus, Tiger. View source.
  10. Kunstmuseum Basel, Tierschicksale dossier. View source.
  11. Franz Marc, Briefe, Aufzeichnungen und Aphorismen, vol. 1, notes tentatively dated 1911–12. View source.
  12. Harvard Art Museums, Grazing Horses IV. View source.
  13. Sotheby's, Weidende Pferde III. View source.
  14. Lenbachhaus, Macke and Marc exhibition. View source.
  15. Marc to August Macke, 12 December 1910, German correspondence transcription. View source.
  16. Franz Marc Museum, colour-theory research. View source.
  17. Museo Nacional Thyssen-Bornemisza, Franz Marc. View source.
  18. Lenbachhaus, Deer in a Monastery Garden. View source.
  19. Christie's, The Foxes. View source.
  20. Art Institute of Chicago, The Bewitched Mill. View source.
  21. Walker Art Center. View source.
  22. Lenbachhaus woodcut. View source.
  23. German Lost Art Foundation. View source.
  24. Berlin State Museums dossier. View source.
  25. Pinakothek, Kämpfende Formen. View source.
  26. Franz Marc Museum, collection. View source.
  27. Franz Marc Museum, tower sketch. View source.
  28. Lenbachhaus, Geburt der Pferde. View source.
  29. Related artwork image, Yellow Cow: Photograph by Dr. Alexey Yakovlev; resized without crop or colour change, CC BY-SA 2.0.