Morgan ab Owain

Please see Darrell Wolcott: The 'Next Heir' of Morgan of Caerleon; http://www.ancientwalesstudies.org/id214.html. (Steven Ferry, September 18, 2020.)

Please see Darrell Wolcott: Ifor Bach, Lord of Senghenydd; http://www.ancientwalesstudies.org/id316.html (Steven Ferry, August 4, 2023.)

http://www.oxforddnb.com/view/printable/48555

Iorwerth ab Owain (d. 1175x84), prince in Wales, lord of Caerleon, succeeded the king, his elder brother Morgan ab Owain, on Morgan's violent death in 1158. There is no indication that Iorwerth ever used the royal style, derived from their grandfather, Caradog ap Gruffudd (d. 1081), one-time dominant king of Gwlad Morgan and client of William I. Iorwerth's first appearance is in 1136 when Gerald of Wales names him as the man responsible for the killing of Richard de Clare of Ceredigion in the pass of Grwyne Fawr between Abergavenny and Talgarth. In the subsequent conquest of Upper Gwent and Llefennydd by Morgan ab Owain, Iorwerth was closely associated with his brother. They issued joint charters in Stephen's reign, and even appear to have possessed a joint seal (although no impression of it survives). Although King Morgan left at least two sons, it was his brother who succeeded him in 1158. This was quite clearly because Iorwerth had occupied the position of heir designate (edling) during his brother's lifetime.

http://welshleigh.org/genealogy/prichardancestry/prichardhistorical...

The death of CARADOG put an end to effective Welsh leadership in south east Wales, and the Normans took over much of the fertile lowlands, though CARADOG’s son OWAIN WAN (the weak) did retain some influence. OWAIN’s eldest son Morgan was recognized as the Lord of Caerleon (west Monmouthshire) by king Henry II, and after his death in 1158 he was succeeded by his brother IORWERTH ab OWAIN. For some reason Henry dispossessed him in 1171, but two years later IORWERTH and his son HYWEL seized Caerleon and other castles in Monmouthshire. Though they lost them soon afterwards, their friendship with the LORD RHYS induced the king to return Caerleon to them, and in 1184 HYWEL was the only Welshman among six men who held castles in Glamorgan and Monmouthshire in the king’s name when the Welsh attacked Glamorgan (DWB “Morgan ap Hywel”, Bradney, Vol III, p.187). He was complimented by Gerald of Wales for “observing a strict neutrality between the Welsh and the English” (quoted by R.R.Davies, Conquest p.102). Lowland Monmouthshire had been under nominal Norman control for a century, but Davies noted: “It was indicative of continuing native influence in the area that when a Cistercian abbey was founded at Llantarnam near Caerleon in 1179, its mother house should be Strata Florida in the heart of native Wales, and its patron and protector was the local Welsh ruler in Monmouthshire, HYWEL ab IORWERTH ab OWAIN” (p.273).