 Edward IV seized power in 1461 . When Edward captured Henry 's wife , Margaret of Anjou , she was brought back to be detained at the castle . Edward began to revive the Order of the Garter , and held a particularly lavish feast in 1472 . Edward began the construction of the present St. George 's Chapel in 1475 , resulting in the dismantling of several of the older buildings in the Lower Ward . By building the grand chapel Edward was seeking to show that his new dynasty were the permanent rulers of England , and may also have been attempting to deliberately rival the similar chapel that Henry VI had ordered to be constructed at nearby Eton College . Richard III made only a brief use of Windsor Castle before his defeat at the Battle of Bosworth Field in 1485 , but had the body of Henry VI moved from Chertsey Abbey in Surrey to the castle to allow it to be visited by pilgrims more easily . 
