The Willful Princess and the Piebald Prince

[joost]

Is that what a piebald horse would look like? Or is it artist interpretation, to a large degree independent of facts?

Page 34, TWPATPP

Now among his wares this odd trader had a spotted horse -- not dappled nor speckled, mind you, but blotted in great ugly spots, like a fruit that has taken blight, or a pooly-dyed blanket, or a milk cow

The depicted horse seems to match that description.