Some owners improved and rebuilt their castles to create more comfortable accommodation. At Raglan Castle, William Somerset (1549-89), the third earl of Worcester, carried out improvements to provide grand accommodation suitable for a gentleman of his status. He rebuilt the Great Hall and the Office Wing (with accommodation for staff) and added the Long Gallery (where pictures would be displayed and the family and guests could take exercise). He also built beautiful gardens.
Chirk Castle, Wrexham, and Powis Castle, Powys, (both owned by the National Trust and open to the public) are castles that were changed into grand houses by their owners.