31William the Conqueror,12,56,65,272,277,283William Longsword,65William of Sabina, Cardinal,428Wismar,469Wollin,120YYgdrasil,18Ymer,16,17Ynglings,31,40,45,57,62Yngve,45York,81,268Yotun,16,17,21,23Yotunheim,17,18,21ZZoë, Empress,242