Anglo-Scottish border English king, Edgar the Peaceful, at his council in Chester. After Kenneth had reportedly done homage, Edgar rewarded Kenneth by granting him Lothian. Despite this transaction, the control of Lothian was not finally settled and the region was taken by the Scots at the Battle of Carham in 1018 and the River Tweed became the "de facto" Anglo-Scottish border. The Solway–Tweed line was legally established in 1237 by the Treaty of York between England and Scotland. It remains the border today, with the exception of the Debatable Lands, north of Carlisle, and a small area around Berwick-upon-Tweed, which was taken
River Camlad the border back into England, and flows just east of Chirbury before turning west again, and forms the border (for the second time) between England and Wales. It turns northwest into Wales (for the second time) to join the River Severn to the west of Forden. Early forms include the "Kemelet" (1227), "Kemlet" (1256), "Kelemet" 1274, "Camalet" and "Kenlet" (1577) and Camlet (1612). Ekwall proposes the Welsh "" meaning "a knot" (which is found in other river names) giving a hypothetical Old Welsh "Culmet" then "Cylmet" whence "Kelemet", alternatively "Cym(y)let" from the Old Welsh for "loop". River Camlad The River