SOURCE-12718Research NeededProbable
Henry Richard Luard, Annales Monastici, I (1864): 101, cited by Sharon Kay Penma...
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Henry Richard Luard, Annales Monastici, I (1864): 101, cited by Sharon Kay Penman, The Mother of Joanna of Wales, wife of Llywelyn ab Iorwerth. Posted on her Blog. Accessed July 7, 2017. jhd