William I of Burgundy

• Birth: 1020
• Death: 12 November 1087, Besançon, France (then an independent city in Burgundy)

• Partner: Stephanie
  
• +*Child: Sybilla of Burgundy ⇒
• * Child: Gisella of Burgundy ⇒
•   Child: Renaud II of Burgundy
•   Child: Stephen I of Burgundy
• * Child: Raymond of Burgundy Born: about 1070 ⇒
•   Child: Clementia of Burgundy
•   Child: Guy Pope Callixtus II
+ Our research indicates that this child is Robert's ancestor.
* Our research indicates that this child is Janet's ancestor.

Descendants of William I of Burgundy

• 1 William I of Burgundy
= Stephanie
• 2 Sybilla of Burgundy
= Odo I of Burgundy
• 3 Ela of Burgundy ⇒
• 3 Hugh II of Burgundy ⇒
• 2 Gisella of Burgundy
= Humbert II of Savoy
• 3 Adelaide of Savoy ⇒
• 3 Amadeus III of Savoy ⇒
• 2 Renaud II of Burgundy
• 2 Stephen I of Burgundy
• 2 Raymond of Burgundy
= Urraca Queen of Leon and Castile
• 3 Alfonso VII King of Leon and Castile ⇒
• 2 Clementia of Burgundy
• 2 Guy Pope Callixtus II