Start with high-confidence medieval history for kids books, then narrow by subgenre or adjacent topics.
National Geographic Kids Knights and Castles Sticker Activity Book
National Geographic Kids
A Short History of the Middle Ages, Fifth Edition
Barbara H. Rosenwein
The Story of the Middle Ages
Stephen Harding, Samuel B. Harding
Famous Men of the Middle Ages
John Henry Haaren
Medieval World
Jane Bingham
