Gower

Gower was a marcher lordship on the south Welsh coast, centred on Swansea Castle. In 1337 John de Mowbray held the peninsula and its surrounding lands.

In 1468 the lordship passed to William Herbert, Earl of Pembroke; in 1479 Edward IV granted it to his son Prince Edward. The Laws in Wales Acts of 1535 and 1542 ended Gower's marcher status and brought it into the English county system.