Morgannwg

Glywysing
Eugenius, son of Magnus Maximus
Marius, son of Eugenius
Solar, son of Marius
Glywys, son of Solar c.470–c.480, who gave his name to the kingdom.
Gwynllyw, son of Glywys, ruler of Gwynllwg c.480–523, cantref of Glywysing
Pawl, son of Glywys, ruler of Penychen c.480–540, cantref of Glywysing
Mechwyn, son of Glywys, ruler of Gorfynydd c.480–c.500, cantref of Glywysing
Cadoc, son of Gwynllyw, ruler of Gwynllwg 523–580 and Penychen 540–580, died without heirs
Glywysing is ruled by the Kings of Gwent until Rhys ap Ithel
Rhys ap Ithel/Rhys ab Idwal, son of the Kings of Gwent c.755–785, with brothers, Rhodri and Meurig
Arthfael Hen ap Rhys, Hen the Old 785–c.825, with Brochfael ap Rhys
Rhys ap Arthfael, c.830–c.840
Hywel ap Rhys, c.840–886
Owain ap Hywel 886–c.930
Gruffydd ab Owain c.930–934 King of Gower
Cadwgan ab Owain c.930–950 King of West Glywysing
Morgan the Old Morgan Hen or Morgan ab Owain or Moragn Hen Fawr 930–974 united the former kingdoms of Gwent and Glywysing in 942 under the name of Morgannwg, but they were broken up again immediately after his death, remaining separate until about 1055
Morgan the Old's son, Owain ap Morgan 974–c.983
brothers of Owain ap Morgan Idwallon, Hywel and Cadell dates unknown
his son, Rhys ab Owain c.990–c.1000 who ruled Glywysing jointly with his brothers,
Ithel the Black, son Idwallon 990
Hywel ab Owain c.990–c.1043 and
Iestyn ab Owain c.990–c.1015
his son, Rhydderch ap Iestyn c.1015–1033
his son, Gruffydd ap Rhydderch 1033–1055
Gwrgant ab Ithel the Black 1033-1070
the invader, Gruffydd ap Llywelyn, prince of Gwynedd 1055–1063
Gruffydd ap Rhydderch's son, Caradog ap Gruffydd 1063–1081 who was a subject of the King of Gwent and King of Morgannwg Cadwgan ap Meurig before he deposed him and took the kingdom for himself
Iestyn ap Gwrgant 1081–1091

Iestyn was the last ruler of an independent Morgannwg, which was thereafter in the possession of the Normans and became the lordship of Glamorgan

NOTE: saved from online sources as a starting outline only.