The first post to a member of the royal family that Henry Chalon enjoyed was as the animal painter to HRH the Duchess of York (Friederike Charlotte Ulrike Katharina; (her dates are May 7, 1767 to August 6, 1820). That occurred in 1795. This was a great honor and good for business. The favor continued, for a book of Chalon's was dedicated to Fredericka.
Direct evidence of the artist's careful study of the Horse may be found in a book entitled "Studies from Nature," which was dedicated with permission to his patroness the Duchess of York, and published 1st May, 1804, by H. B. Chalon and J. C. Nattes. This contains twenty plates, each 14 inches by 11 inches; seventeen represent dogs and birds, and the remaining three are Anatomical Tables, viz.: (1) The Horse's Skeleton on a New System; (2) Explanation of the Anatomical Table of the Horse's Muscles; and (3) The Proportions of an Arabian on quite a new System.
Nor was this royal favor evidence of what historians's call Fredericka's eccentricity.
Henry Bernard Chalon would later become the official animal painter for King George IV, and William IV. Chalon was good at painting dogs and horses.
The book, Animal Painters of England from the Year 1650: A Brief History of Their Lives and Works, Volume 1, by Sir Walter Gilbey, and F. Babbage (1900) is the source of most of our information. This book lists many of Chalon's paintings.
Their citations include a lot of commercial detail, as in
Chalon's portrait of Brainworm, a race-horse, was engraved by J. C. Easling; ...the print was published by R. Ackermann. His portraits of the race-horses Morelli and Vandyke, were engraved by William Say as companion pictures, .... The portraits of the Prince of Wales' horses, Orville and Sir David, exhibited in the Royal Academy of 1808, were engraved by William Ward,....
But it was not all horses, and dogs. Here is a sample, of his birds.
And there are also cats he painted. The article on Chalon in the source we cite above lists, all of Chalon's paintings which were shown at the Royal Academy. There were 193 of them. Among the paintings we find:
NORWEGIAN RABBIT, CAT, AND TWO TERRIERS, property of Henry Ellison, Esq., of Beverley, Yorkshire. (1829)
and in 1832 Henry Bernard Chalon exhibited 5 paintings at the Royal Academy show and these include:
1832—(5) HUNTER AND SPANIEL—SPOT, Italian greyhound, property of Duke of Devonshire—TWO CATS, a white Persian and a Siberian—FANG, a hunter, property of Marquis of Sligo, ....
So we learn the Marquis of Sligo paid Chalon to paint two cats, a white Perisan and a Siberian. Not sure what the Siberian looked like, but I doubt it was a tiger. I suspect a breed of cat we call by a different name now. And Henry Ellison, Esq. also paid to have a cat painted, though as part of a group of animals. In view of the rarity of cats as subjects for animal painters, at the time, I wonder if we can assume love for the cats was the motive.
The citations above give a good sense of what writing art history was like during the 19th century and before E. H. Gombrich demonstrated a fuller, more graceful and illuminating investigation, of what art history could be.