「The present-day complex has been reworked repeatedly since William the Conqueror first constructed a stockade on the site. The lower ward includes the Albert Memorial Chapel and St. George's Chapel, the Burial place of 10 sovereigns.」
圆塔西边为下院,东边为上院。1070年前后,征服者威廉一世在此地建土岗及围栏。下院包括圣乔治教堂和艾伯特纪念教堂。葬有十位君主。