sentences:  Some further information was written down in the 12th century at Peterborough Abbey, as Medeshamstede was known by that time.This suggests that he began his career as a nobleman, and that he may have had royal connections outside Mercia.Seaxwulf's earliest appearance is in the Latinised form "Sexwlfus", in Stephen of Ripon's "Vita Sancti Wilfrithi", or "Life of St. Wilfrid", of the early 8th century.