The King’s White Hound, the Chien Blanc du Roi in French, was a breed of scent hound from France that is now extinct. The breed was said to be the favourite of the French kings from Louis XI to Louis XIV.
Image credit: Jean-Baptiste Oudry, Public domain
Adapted from Wikipedia, CC BY-SA 4.0 — https://en.wikipedia.org/wiki/King%27s_White_Hound