Career
They founded the abbey in 721. Through Charibert"s daughter Bertrada of Laon, wife of Pippin the Short, Bertrada is the great-grandmother of Charlemagne. Her husband is unknown for certain.
Two alternative solutions to the question of her parentage have been suggested:
She was daughter of the seneschal and Pfalzgraf Hugobert and Irmina of Oeren.
She was daughter of Theuderic III, king of Neustria and Austrasia, and Clotilda of Heristal.