Second son.195

In 1146 Cadwalader was lord of Cardigan, Wales and gave his son Cadogan his shares of castles there, but in 1151 he and his family were obliged to seek refuge with his wife's relatives. It may be this Cadogan that is said to have the same Coat of Arms as the Walshs of Castlehale in County Kilkenny. Cadawalder died in 1172, killed it is said by his English escort. Cadwalader's sons were Cunneda, Ralph, Richard, Cadogan, Meredith and Cadwallon. He had a daughter, Alicia, and perhaps others.

Cadwaladr ap Gruffydd (c.1096 - 1172) was the third son of Gruffydd ap Cynan, King of Gwynedd and younger brother of Owain Gwynedd. Cadwaladr first appears in the historical record in 1136, when following the killing of the lord of Ceredigion, Richard Fitz Gilbert de Clare, he accompanied his brother Owain Gwynedd in an invasion of Ceredigion. They captured five castles in the north of Ceredigion then later in the year launched a second invasion, inflicting a heavy defeat on the Normans at the Battle of Crug Mawr, just outside Cardigan. In 1137 they captured Carmarthen,
Gruffydd ap Cynan died in 1137 and was succeeded by Owain Gwynedd, his eldest surviving son. Cadwaladr was given lands in northern Ceredigion. Cadwaladr joined with Ranulph, Earl of Chester in the attack on Lincoln in 1141, when King Stephen of England was taken prisoner. This alliance was probably linked to Cadwaladr's marriage to Alice de Clare, daughter of Richard Fitz Gilbert de Clare.
In 1143 Cadwaladr's men killed Anarawd ap Gruffydd of Deheubarth by treachery, apparently on Cadwaladr's orders. Owain Gwynedd responded by sending his son Hywel ab Owain Gwynedd to deprive Cadwaladr of his lands in Ceredigion. Cadwaladr fled to Ireland where he hired a fleet from the Danish settlement in Dublin and landed at Abermenai in 1144 in an attempt to force Owain to return his lands. Cadwaladr apparently abandoned or escaped from his allies and made peace with his brother, who obliged the Danes to leave,
In 1147 Hywel ab Owain Gwynedd and his brother Cynan drove Cadwaladr from his remaining lands in Meirionnydd. A further quarrel with his brother Owain led to Cadwaladr being driven into exile in England, where King Henry II later gave him lands at Hess in Shropshire.
When Henry II invaded Gwynedd in 1157 the terms of the peace agreement between him and Owain Gwynedd included the stipulation that Cadwaladr should be given back his lands. From this time on Cadwaladr was careful to cooperate closely with his brother, helping him to capture Rhuddlan and Prestatyn castles in 1167.
Cadwaladr survived his brother by two years, dying in 1172. He was buried alongside Owain in Bangor Cathedral.
Cadwaladr had seven sons with three different wives;
• Cadfan ap Cadwaladr ap Gruffydd (with first wife)
• Cunedda ap Cadwaladr ap Gruffydd (with second wife)
• Rhicert ap Cadwaladr ap Gruffydd (with second wife)
• Ralph ap Cadwaladr ap Gruffydd (with second wife)
• Cadwgan ap Cadwaladr ap Gruffydd (with third wife)
• Maredudd ap Cadwaladr ap Gruffydd (with third wife)
• Cadwallon ap Cadwaladr ap Gruffydd (with third wife)

Cadwaladr's attempt to reclaim his lands with the help of a Danish fleet in 1144 forms the background to The summer of the Danes by Ellis Peters in the Brother Cadfael series.
John Edward Lloyd (1911) The history of Wales from the earliest times to the Edwardian conquest (Longmans, Green & Co.)