Jack Goldstein 
101 Amazing Facts about Castles [PDF ebook] 

Did you know that the world’s oldest football was found in a room at Stirling Castle? Do you know what the person in charge of a castle’s buttery is called? What is the difference between a trebuchet and a mangonel? And what is an oubliette? The answers to all of these questions and more can be found in the excellent quick-read guide to castles. Whether you’re King Richard the Lionheart himself, or just some unlucky peasant, this book containing over one hundred facts is sure to keep you entertained.