in Gwynedd but receives no assistance from Gruffudd ap Cynan. 1116 Revolt against the Normans, led by Gruffydd ap Rhys. He successfully attacks Swansea Castle, Carmarthen Castle, and Kidwelly Castle, but fails to take Castle Llanmyddyfri or Aberystwyth. 1119 Bernard, Bishop of St David's, attends the council of Reims. 1120 4 April – The Archbishop of Canterbury grants a request from Gruffudd ap Cynan to recognise David the Scot as Bishop of Bangor. May – The remains of Dubricius (Saint Dyfrig) are moved from Bangor to Llandaff. Canonization of Saint David is recognised by Pope Callixtus II. 1121 April/May – Sibyl, daughter of Bernard de Neufmarché, marries Miles of Gloucester, 1st Earl of Hereford; the marriage is personally arranged by King Henry I of England. Robert Turberville is recorded as a principal tenant of Bernard de Neufmarché at Crickhowell. Walter of Gloucester enters Llanthony Priory as a monk; his title passes to his son Miles. 1123 Bernard, Bishop of St David's, visits Rome. 1124 Cadwallon ap Gruffydd kills the three rulers of the cantref of Dyffryn Clwyd, Meilyr ab Owain, Rhiryd ab Owain and Gronw ab Owain, his maternal uncles, to annexe it to his father's Kingdom of Gwynedd. 1125 Bernard, Bishop of St David's, ejects the Benedictines from Carmarthen, replacing them with the Augustinian order. David, Bishop of Bangor, visits the Archbishop of Canterbury at Lambeth. 1127 Bishop Urban of Llandaff unsuccessfully seeks support from the Council of Westminster to extend the boundaries of his diocese from the River Tawe to the River Towy. Gruffydd ap Rhys of Deheubarth goes into a brief exile in Ireland. Caradog ap Iestyn of Glamorgan, and his brothers Gruffydd and Goronwy are involved in a “deed of violence”. 1128 19 April - Bishop Urban of Llandaff seeks support from the Pope for the extension of his diocese. 1129 Bishop Urban of Llandaff makes a second appeal to the Pope. Bishop Bernard of St David's follows him to Rome and obtains a deferment of the decision. Bledri ap Cydifor makes a grant of land to Carmarthen Priory. Richard I de Grenville makes a grant of land to the Congregation of Savigny for foundation of Neath Abbey; the first monks arrive in 1130. The name of Geoffrey of Monmouth appears on the charter of Osney Abbey in Oxfordshire. Penhow Castle is first known to be occupied. 1130 Robert de Bethune, prior of Llanthony, is made