B275L The Battle of Dunkirk in 1383 (Flemings against the British under the command of Henry Dispenser, Bishop of Norwich) Froissart’s Chronicles

The picture has something of this: decoration, design, retro, vintage, texture, text, people, flower, picture frame, paper, antique.
Perhaps it’s a page of a medieval book with a picture of a group of men on horseback and a man on a horse on the other side of the page.