 Aldfrith was married to Cuthburh , sister of King Ine of Wessex ; the marriage thus allied Aldfrith with one of the most powerful kings in Anglo @-@ Saxon England . The Anglo @-@ Saxon Chronicle records that Aldfrith and Cuthburh separated , and Cuthburh established an abbey at Wimborne Minster where she was abbess . At least two sons were born to Aldfrith , but whether Cuthburh was their mother is unrecorded . Osred , born around 696 or 697 , succeeded to the throne after a civil war following Aldfrith 's death . Little is known of Offa , who is presumed to have been killed after being taken from Lindisfarne in 750 on the orders of King Eadberht of Northumbria . Osric , who was later king , may have been Aldfrith 's son , or alternatively the son of Aldfrith 's half @-@ brother Alhfrith . The 13th @-@ century discovery of a tomb thought to be that of St <unk> has led to the suggestion that <unk> was the daughter of Aldfrith , although this view is not widely held by modern historians . 
