William I was crowned by the Archbishop of York, since the Archbishop of Canterbury had been appointed by the Antipope Benedict X, and this appointment was not recognised as valid by the Pope.
威廉一世是由约克大主教加冕的，因为坎特伯雷大主教是由僭称的罗马教皇本笃十世任命的，而他的任命并不被教皇承认。