Dictionary of Welsh Biography

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LLYWARCH ap BRAN ( fl. c. 1137 ), founder of one of the ‘Fifteen (Noble) Tribes of Gwynedd’ ,

is described as brother-in-law of Owain Gwynedd (q.v.) , their wives being daughters of Gronw ab Owain ab Edwin , lord of Tegeingl . Like Hwfa ap Cynddelw , he is said to have been steward to Owain Gwynedd and to have lived in the township of Tref Llywarch , Anglesey ; he is also described as lord of the commote of Menai , Anglesey . For the names of some of the families who claimed descent from him see Philip Yorke , Royal Tribes of Wales ( 1887 ed.), 177-80.


  • Philip Yorke , The Royal Tribes of Wales (1887 ed.);
  • T. Pennant , A Tour (Tours) in [North] WalesPennant, Thomas (1883 ed.).


Sir William Llewelyn Davies, M.A., LL.D., F.S.A. (1887-1952), Aberystwyth

Published date: 1959