The Welsh Revolt (also called the Glyndŵr Rising or Last War of Independence) was a Welsh rebellion led by Owain Glyndŵr against the Kingdom of England during the Late Middle Ages. During the rebellion's height between 1403 and 1406, Owain exercised control over the majority of Wales after capturing several of the most powerful English castles in the country, and formed a national parliament at Machynlleth. The revolt was the last major manifestation of a Welsh independence movement before the annexation of Wales into England by the Laws in Wales Acts 1535–1542.