Morris-Jones, John (1918), "Taliesin's Marwnad Rhun (Elegy of Rhun)", in Evans, E. Vincent (ed.), Y Cymmrodor, vol. XXVIII, London: Honourable Society of Cymmrodorion, pp. 209–222. For example, the Marwnad Rhun attributed to Taliesin tells of a campaign in the north by Rhun ap Maelgwn Gwynedd and his death there in battle. Morris-Jones notes that the particulars of the marwnad are everywhere consistent with the historical record and nowhere inconsistent, and likely a product of the 6th century, a view shared by notable skeptics such as Thomas Stephens.
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Meyer, Kuno (1896), "Early Relations Between Gael and Brython", in Evans, E. Vincent (ed.), Transactions of the Honourable Society of Cymmrodorion, Session 1895–1896, vol. I, London: Honourable Society of Cymmrodorion, pp. 55–86
Lloyd 1911:84–88, History of Wales, "Wales Under Roman Rule". Tyst ("witness") is an anecdotal exception. Medieval Welsh law used native terms and concepts such as gwlad, tref, alltud, cenedl, aillt, brenhin, brawdwr, etc. Lloyd, John Edward (1911), A History of Wales from the Earliest Times to the Edwardian Conquest, vol. I (2nd ed.), London: Longmans, Green, and Co (published 1912)
Hoüard, David, ed. (1776), "Regiam Majestatem", Traités sur les Coutumes Anglo-Normandes, vol. II, Rouen, pp. 38–269. See, for example CAPUT XXXVI, and elsewhere. Page 164 shows Item 7 of Chapter 36, "7 Item, LE CRO, & Galnes & Enach ...".
