Thornham was a town of the Griffin Empire. It was captured by Demons during Queen Isabel's War. While at the Summer Palace, Biara-as-Beatrice used Thornham's and Hardwick's fall as an argument for seeking outer help from the Empire's old allies, Irollan and the Silver Cities. In reality, she just wanted to implicate Isabel in the conflict so she could be captured by the Demons - the true objective of their attack on the Empire.