Cornwall

Cornwall was a Brittonic kingdom in the southwest of Britain, emerging after the decline of Dumnonia and coming under Wessex by the mid-ninth century. In 1337 the English crown created the duchy of Cornwall for the king's eldest son and heir; local stannary institutions retained some control over tin mining.

In 1497 taxation for Henry VII's Scottish war helped provoke a Cornish rebellion, defeated at Deptford Bridge near London. The stannaries regained a measure of autonomy in 1508, but Tudor centralisation eroded much of Cornwall's remaining autonomy.