 Then a second phase of defence in late 9th or early 10th centuries, also against Viking invaders.In the Burghal Hidage of 919, nearby Watchet is attributed 513 hides, which converts to a defensive perimeter of 645 m. It is not clear whether this refers to the walls of the town, or of Daw's Castle high on the cliff above.The "Anglo-Saxon Chronicle" records a Viking raid on Watchet in 914, but they were defeated "with great slaughter ... so that few of them came away, except those only who swam out to the ships".