Gruffydd ap Cynan is an ally of Earl Randolph of Chester in his attack on Lincoln. Ewenny Priory is founded. 1143 Following the murder of Anarawd ap Gruffydd by supporters of Cadwaladr ap Gruffydd ap Cynan, Owain Gwynedd and his son Hywel drive Cadwaladr out of Ceredigion. Gilbert is appointed Bishop of St Asaph. 1144 Bernard, Bishop of St David's, gives land at Trefgarn to the first Cistercian monks to settle in west Wales. Cadwaladr ap Gruffydd ap Cynan brings a Danish fleet to Abermenai from his Irish allies; the Danes are driven out by his brother Owain Gwynedd. Cadwaladr is reconciled with Owain and restored to Ceredigion. Hugh de Mortimer recaptures Maelienydd and Elfael from the Welsh. 1145 Hywel ab Owain Gwynedd and his brother Cynan sack Cardigan but fail to take the castle. Hugh de Mortimer captures a local leader, Rhys ap Hywel. Gilbert de Clare, 1st Earl of Pembroke, fortifies the castle of “Dinwileir”. 1146 Owain Gwynedd takes Mold from Ranulf de Gernon, 4th Earl of Chester. Cadell ap Gruffydd takes the castle of Dinwileir from Gilbert de Clare, 1st Earl of Pembroke. With help from Hywel ab Owain Gwynedd, he also takes the castles of Carmarthen and Llansteffan. Rhys ap Gruffydd (the Lord Rhys) begins his military career, aged 13, fighting under his brother Cadell. Hugh de Mortimer brings about the death of Maredudd ap Madog ab Idnerth. 1147 In alliance with Hywel ab Owain Gwynedd and the Fitzgeralds of Pembroke, Cadell ap Gruffydd takes the castle of Wiston from Walter Fitzwiz. Hywel ab Owain Gwynedd and his brother Cynan invade Meirionnydd and take the castle of Cynfail from their uncle, Cadwaladr ap Gruffydd ap Cynan. 1148 19 December – David FitzGerald is consecrated Bishop of St David's, at Canterbury. 1149 Madog ap Maredudd mounts an expedition into England and takes the Fitzalan lordship of Oswestry. He appoints his nephew Owain Cyfeiliog to rule Cyfeiliog on his behalf. Tegeingl and Iâl are annexed by Owain Gwynedd. 1150 Cadell ap Gruffydd launches a raid on Kidwelly. Cynan ab Owain Gwynedd is imprisoned by his father Owain Gwynedd, for unspecified reasons. Hywel ab Owain Gwynedd captures his cousin Cadfan, son of Cadwaladr ap Gruffydd ap Cynan, and occupies the new castle at Llanrhystud. Bertha of Hereford marries William de Braose, 3rd Lord of Bramber. 1151 Cadell ap Gruffydd is attacked by Normans while hunting in the forest of