Morgan ap Maredudd sometimes referred to as “Morgan the Rebel” (flourished 1270-1316), rebel, was the son of Maredudd ap Gruffudd (c.1234-c.1275) the last Welsh lord of Caerleon

Caerleon

Caerleon is a suburban village and community, situated on the River Usk in the northern outskirts of the city of Newport, South Wales. Caerleon is a site of archaeological importance, being the site of a notable Roman legionary fortress, Isca Augusta, and an Iron Age hill fort...

 of Machen, and Maud, daughter of Cadwallon. Owing to grievances against the de Clares, when his family was deprived of its estates by Gilbert de Clare, earl of Gloucester

Gloucester

Gloucester is a city, district and county town of Gloucestershire in the South West region of England. Gloucester lies close to the Welsh border, and on the River Severn, approximately north-east of Bristol, and south-southwest of Birmingham....

 he claimed to be at war only against the lords of Glamorgan

Glamorgan

Glamorgan or Glamorganshire is one of the thirteen historic counties and a former administrative county of Wales. It was originally an early medieval kingdom of varying boundaries known as Glywysing until taken over by the Normans as a lordship. Glamorgan is latterly represented by the three...

. During 1283 he supported the rebellion of Dafydd ap Gruffydd

Dafydd ap Gruffydd

Dafydd ap Gruffydd was Prince of Wales from 11 December 1282 until his execution on 3 October 1283 by King Edward I of England...

, prince of Wales

Prince of Wales

Prince of Wales is a title traditionally granted to the heir apparent to the reigning monarch of the United Kingdom of Great Britain and Northern Ireland and the 15 other independent Commonwealth realms...

. He was the leader of the Glamorgan insurgents during the rising of Madog ap Llywelyn

Madog ap Llywelyn

Madog ap Llywelyn, or Prince Madoc, was from a junior branch of the House of Aberffraw and a distant relation of Llywelyn ap Gruffudd, the last recognised native Prince of Wales.-Lineage:...

 in 1294-5; under his leadership, the Welsh captured castles at Kenfig

Kenfig

Kenfig is a village and former borough in Bridgend, Wales.The borough contributed with other Glamorgan towns to sending a member of parliament to Westminster until the Reform Act of 1832...

, Llangibby

Llangibby

Llangibby can refer to:*Llangybi, Monmouthshire , a town in Wales.Ships named after this town, or its castle:*Llangibby *MV Llangibby Castle...

, and Morlais. Morgan submitted to king Edward I and in 1297 he became an esquire of Edward's household and his agent in south Wales.

His daughter, Angharad, married Llewelyn ap Ifor, Lord of St. Clere.