1137 April/May - Gruffydd ap Rhys, Prince of Deheubarth, about 56 10 July - Pain fitzJohn, Anglo-Norman nobleman and administrator, about 37 August - Ranulph de Mortimer date unknown - Gruffudd ap Cynan, ruler of Gwynedd 1143 24 December - Miles of Gloucester, 1st Earl of Hereford, Marcher lord date unknown - Anarawd ap Gruffydd, prince of Deheubarth 1148 6 January - Gilbert de Clare, 1st Earl of Pembroke 1155 22 September - Roger Fitzmiles, 2nd Earl of Hereford date unknown - Maredudd ap Gruffydd, prince of Deheubarth 1160 date unknown - Madog ap Maredudd, Prince of Powys 1170 28 November - Owain Gwynedd, Prince of Gwynedd December - Hywel ab Owain Gwynedd, poet and Prince of Gwynedd 1172 date unknown - Cadwaladr ap Gruffydd, prince of Gwynedd 1175 date unknown - Cadell ap Gruffydd, Prince of Deheubarth 1176 1 September - Maurice FitzGerald, Lord of Lanstephan 1191 date unknown - Gruffydd Maelor, Prince of Powys Fadog 1195 date unknown - Rhodri ab Owain Gwynedd, prince of Gwynedd 1197 28 April - The Lord Rhys, ruler of Deheubarth, about 65 date unknown - Owain Cyfeiliog, poet and Prince of Powys 1200 Gruffudd ap Cynan ab Owain Gwynedd, Welsh prince References Timeline of Welsh history