The publishers would like to thank all the castle owners and custodians who generously provided pictures and checked the information contained in this book, as well as the following people for their involvement: David Lyons for his numerous pictures, Bill Zajac at Cadw, and Antoinette Robinson at the Office of Public Works, Marilynne Lanng for research and editorial work, Laura Gil Lasheras for additional research, Pamela Stagg for proofreading, and Lisa Wyman for page design.