What is "austrebertha"

Austrebertha (Austreberta, Eustreberta, Austreberta of Pavilly) (630–704) is venerated as a saint by the Catholic Church. The daughter of Saint Framechildis and the Count Palatine Badefrid, she became a nun after she refused to be part of an arranged marriage. She received the veil from Saint Omer at Abbeville and later became an abbess at Jumieges, and at Pavilly. She helped reform the convent of Pavilly.

The towns named Sainte-Austreberthe refer to her.