The Most Mysterious Name Ever Lost to History

This is the story of a kingdom whose name has been entirely forgotten, connected to one of the most notable royal families in the entire world.
It is not often that the history of Wales coincides with something so famous, but Welsh history is full of forgotten names and places. Here we have a kingdom forgotten from the history of Wales, but not due to a lack of notoriety.

The dynasty that would go on to subjugate a quarter of the entire world, the victors of the Wars of the Roses, and one of the ancestors of, arguably, one of the most famous royal families known today, owes its origins to a king from Wales, who filled a power vacuum left behind by a victor who never left a surviving record of their own name.

Chapters:
0:00 - The Kingdom that Forgot its Own Name
1:00 - Ignoring your Adopted Son
3:20 - A Civil War
6:14 - A Title with No Name
8:30 - Cunedda Wledig Propaganda
11:41 - Rhos, and Dinerth
15:00 - Consequence

Sources (turn on captions):
Bartrum, P.C. (1970). Disgyniad Pendefigaeth Cymru. National Library of Wales Journal, 16(3),
[1] p. 261.

Bartrum, P.C. (1993). A Welsh Classical Dictionary: People in History and Legend up to about A.D. 1000. The National Library of Wales,
[2] pp. 90,
[3] 115,
[4] 172-173,
[5] 188-189,
[6] 205,
[7] 368, 371,
[8] 425-426,
[9] 540-541,
[10] 638,
[11] 699-670.

Charles-Edwards, T.M. (2013). Wales and the Britons, 350-1064. Oxford: OUP,
[12] pp. 15,
[13] 180-181,
[14] 210,
[15] 359,
[16] 476-477,
[17] 478.

Davies, J. (2007). A History of Wales. London: Penguin,
[18] p. 49-50,
[19] 137.

Dumville, D. (2002). Annales Cambriae, A.D. 682-954: Texts A-C in Parallel. Cambridge: University of Cambridge, Dept. of Anglo-Saxon, Norse and Celtic,
[20] pp. vi,
[21] 6,
[22] 8-9,
[23] 8-10,
[24] 10-11.

Giles, J.A. and Habington, T. (1842). Gildas’ ‘On the Ruin of Britain’,
[25] p. 23.

Guy, B. (2020). Medieval Welsh Genealogy: An Introduction and Textual Study. Boydell & Brewer,
[26] pp. 61,
[27] 114-115.

Maund, K. (2006). The Welsh Kings. 3rd ed. The History Press Ltd,
[28] p. 26

Morris, M. (2021). The Anglo-Saxons: A History of the Beginnings of England. Penguin Books,
[29] pp. 26-27.

Philimore, E. (1888). The Annales Cambriae and Old Welsh Genealogies. Y Cymmrodor, IX,
[30] pp. 172,
[31] 179-182,
[32] 182-183.

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Jesus College Manuscript: © Jesus College, Oxford, licensed under a Creative Commons Attribution 4.0 license. https://digital.bodleian.ox.ac.uk/obj...

All other images are public domain, via the Yale Center for British Art, the National Library of Wales, the British Library, and the Katholieke Universiteit Leuven