Friðuswiþ

Frithuswith, commonly Frideswide (c. 650 – 19 October 727; Old English: Friðuswīþ), was an English princess and abbess. She is credited as the foundress of a monastery later incorporated into Christ Church, Oxford. She was the daughter of a sub-king of a Mercia named Dida of Eynsham whose lands occupied western Oxfordshire and the upper reaches of the River Thames.