Tickhill Castle, In recognition of his part in the Norman Conquest, Roger de Busli was rewarded with numerous manors spread across Yorkshire and the Midlands. Tickhill Castle was built by Roger de Busli in the first few years of the Norman occupation. It was altered and improved in later years. The gatehouse still exists, though the mound on which the keep was reared is now without what must have been an imposing structure. I am descended from the Busli (Bussell) family.