caption: The image shows an open book with a painting of a group of people on horseback, surrounded by animals, hills, trees, and a sky. The book is believed to be from the 15th century, and the text on the page is likely a description of the scene. The people in the painting are dressed in medieval clothing and appear to be engaged in a battle, with some of them holding swords and shields. The animals in the background are likely horses, and there are trees and hills in the distance. The sky is a deep blue, with a few clouds scattered across it.