connected to royalty. King Æthelberht of Kent and his wife Queen Bertha were later regarded as saints for their role in establishing Christianity among the Anglo-Saxons. Their granddaughter Eanswith founded Folkestone Priory, in 630 the first monastery in the Anglo-Saxon kingdoms for women. Her aunt Æthelburh founded Lyminge Abbey about four miles northwest of Folkestone on the south coast of Kent around 634. In a number of instances, the individual retired from court to take up the religious life. The sisters Mildrith, Mildburh, and Mildgyth, great granddaughters of King Æthelberht and Queen Bertha, and all abbesses at various convents, were revered as saints. Ceolwulf of Northumbria abdicated his throne and entered the monastery at Lindisfarne. In some cases, where the death of a member of royalty appears to be largely politically motivated, it was viewed as martyrdom due to the circumstances. The murdered princes Æthelred and Æthelberht were later commemorated as saints and martyrs. Oswine of Deira was betrayed by a trusted friend to soldiers of his enemy and kinsman Oswiu of Bernicia. Bede described Oswine as "most generous to all men and above all things humble; tall of stature and of graceful bearing, with pleasant manner and engaging address". Likewise, the sons of Arwald of the Isle of Wight were betrayed to Cædwalla of Wessex, but because they were converted and baptized by Abbot Cynibert of Hreutford immediately before being executed, they were considered saints. Edward the Martyr was stabbed to death on a visit to his stepmother Queen Ælfthryth and his stepbrother, the boy Æthelred while dismounting from his horse, although there is no indication that he was particularly noted for virtue. Royalty could use their affiliation to such cults in order to claim legitimacy against competitors to the throne. A dynasty may have had accrued prestige for having a saint in its family. Promoting a particular cult may have aided a royal family in claiming political dominance over an area, particularly if that area was recently conquered. Anglo-Saxon mission on the Continent In 644, the twenty-five year old Ecgberht of Ripon was a student at the monastery of Rath Melsigi when he and many others fell ill of the plague. He vowed that if he recovered, he would become a perpetual pilgrimage from his homeland of Britain and would lead a life of penitential prayer and fasting. He began to organize a mission to the Frisians, but