Editing Pope Callixtus II (section)

==Early life==
Born the fourth son of Count [[William I of Burgundy]],<ref>{{Setton-A History of the Crusades | volume = 1 | chapter = The Crusade of 1101 | first = James Lea | last = Cate | page = 364 note 32}}</ref> one of the wealthiest rulers in Europe, Guy was a member of the highest aristocracy in Europe. His family was part of a network of noble alliances. He was a cousin of [[Arduin of Ivrea]], the [[king of Italy]]. One sister, Gisela, was married to Count [[Humbert II of Savoy]] and then to [[Renier I of Montferrat]]; another sister, Maud, was the wife of Duke [[Odo I of Burgundy]]. Another sister, Clementia, married Count [[Robert II of Flanders]]. His brother [[Raymond of Burgundy|Raymond]] was married to [[Urraca of León|Urraca]], the [[queen of León]], and fathered the future King [[Alfonso VII of León]]. His brother Hugh was [[archbishop of Besançon]].<ref>Mary Stroll,  ''Calixtus II (1119–1124): a pope born to rule'' (Brill, 2004), 9.</ref>