Berthe Ivrea de Bourgogne was born circa 1076 to Guillaume I de Bourgogne (1020-1087) and Etiennette (given name) and died 1097 of unspecified causes. She married Alfonso VI of León and Castile (1040-1109) April 1095 JL . Charlemagne (747-814), Rollo of Normandy (860-932), Charlemagne (747-814)/s.
Berthe's existence and marriage is conjecture. She may well have died in childbirth. She had no surviving children.