Seaxburh is mentioned in a written account of Kent's earliest Christian kings and their canonised relatives, known as the Kentish Royal Legend (Old English: "Þá hálgan"). These kings, queens and princesses were unified by their holiness and royal connections. Pauline Stafford notes that the Legend "may have been a Christian alternative to pagan genealogy" to the rulers of 10th- and 11th-century mediaeval England, as it described an earlier period of sustained Christian piety within the royal dynasty of Kent. Being both a queen and a saint, Seaxburh was held in high regard within the Legend: within it her role as queen and the founder of the minster at Sheppey was highlighted.