is consecrated as Bishop of St Asaph following the resignation of the long-absent Godfrey. Christmas – Abergavenny Massacre: William de Braose, 4th Lord of Bramber, summons Seisyll ap Dyfnwal and other Welsh leaders to his seat at Abergavenny Castle under pretence of reconciliation and has them murdered. Cadell ap Gruffydd enters Strata Florida Abbey shortly before his death. 1176 11 November - Peter de Leia is consecrated as Bishop of St David's, despite the chapter's expressed preference for Gerald of Wales. December - An eisteddfod of bards and musicians is held at Cardigan Castle, to celebrate Christmas. It is for this occasion that Gwynfardd Brycheiniog's awdl in honour of the Lord Rhys is thought to have been composed. Following the death of the last of the sons of Miles de Gloucester, his lands are divided between his daughters, including Bertha, wife of William de Braose. William thus acquires the lordships of Brecon and Abergavenny. Cwmhir Abbey is re-established under the patronage of Cadwallon ap Madog and his brother Einion. 1177 May - At the Council of Oxford, Dafydd ab Owain Gwynedd is given the lordships of Ellesmere and Hales in Shropshire by his brother-in-law King Henry II of England. Owain Cyfeiliog is also present at the Council. Robert Fitzstephen is given a joint grant of the kingdom of Cork, where he settles. 1179 Llantarnam Abbey is founded by the Cistercians, as a daughter house of Strata Florida Abbey. Adam Parvipontanus, Bishop of St Asaph, attends the Lateran Council in Rome. Roger Mortimer of Wigmore is imprisoned by King Henry II of England for his part in the death of Cadwallon ap Madog. 1180 The Life of St Kentigern (Mungo), written about this time by Jocelyn of Furness, contains the only known account of the life of Saint Asaph. 1183 Gerald of Wales visits Ireland, with his brother Philip. A rising in Glamorgan is led by Morgan ap Caradog ap Iestyn. 1184 Peter de Leia is nominated as Archbishop of Canterbury, but not selected. 1185 Gerald of Wales is selected to accompany Prince John to Ireland. 1186 Maenan Abbey is founded near Conwy. 1187 Siege of Tenby by Maelgwn ap Rhys. 1188 Gerald of Wales accompanies Baldwin, Archbishop of Canterbury, on a journey through Wales to recruit volunteers for the Third Crusade. The only Welsh ruler who refuses to support the visit is Owain Cyfeiliog, who is excommunicated for his failure