perhaps three years. The dates are uncertain but it was probably in the late 640s or early 650s. He spent his exile in East Anglia, and was converted to Christianity there. After his return, Cenwealh faced further attacks from Penda's successor Wulfhere, but was able to expand West Saxon territory in Somerset at the expense of the Britons. He established a second bishopric at Winchester, while the one at Dorchester was soon abandoned as Mercian power pushed southwards. After Cenwealh's death in 673, his widow, Seaxburh, held the throne for a year; she was followed by Æscwine, who was apparently descended from another brother of Ceawlin. This was one of several occasions on which the kingship of Wessex is said to have passed to a remote branch of the royal family with an unbroken male line of descent from Cerdic; these claims may be genuine, or may reflect the spurious assertion of descent from Cerdic to legitimise a new dynasty. Æscwine's reign only lasted two years, and in 676 the throne passed back to the immediate family of Cenwealh with the accession of his brother Centwine. Centwine is known to have fought and won battles against the Britons, but the details have not survived. Centwine was succeeded by another supposed distant relative, Cædwalla, who claimed descent from Ceawlin. Cædwalla reigned for just two years, but achieved a dramatic expansion of the kingdom's power, conquering the kingdoms of Sussex, Kent and the Isle of Wight, although Kent regained its independence almost immediately and Sussex followed some years later. His reign ended in 688 when he abdicated and went on pilgrimage to Rome where he was baptised by Pope Sergius I and died soon afterwards. Bokeley Dyke appears to have been fortified around this period, and the former Roman Road at Ackling Dyke blocked by the Britons to prevent the West Saxons' advance into Dorset. Evidence suggests that Dorset, north Hampshire, eastern Devon and southern Wiltshire were substantially under West Saxon control by the beginning of the reign of Caedwalla in 685, but details of their conquest is unclear. His successor was Ine, who also claimed to be a descendant of Cerdic through Ceawlin, but again through a long-separated line of descent. Ine was the most durable of the West Saxon kings, reigning for 38 years. He issued the oldest surviving English code of laws apart from those of the kingdom of