Following his defeat at Chippenham, Alfred was forced to retreat to the Island of Athelney, and the Vikings came close to ruling all of Wessex. From Athelney, Alfred would gather his forces and in May would defeat Guthrum at the Battle of Edington. Combined with Ubba's defeat to Odda, Ealdorman of Devon at the Battle of Cynwit earlier in the year, this would allow Alfred to retake Wessex. Following the Treaty of Wedmore, Guthrum was baptised and left Wessex.