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he might commit adultery with Rowena his daughter, and who also gave a claim to the son that he had by her to the crown of
Lloegria; and added to these, treachery and plotting against the Cambrians. Third, the drunken Seithynin, son of Seithyn Saida king of Dimetia, who in his drunkenness let the sea over the hundred of Gwaelod so that all the houses and land which were there, were lost; where before that event sixteen fortified towns were reckoned there, superior to all the towns and fortifications in Cambria, with the exception of Caerllion upon Usk. The hundred of Gwaelod was a dominion of Gwydnaw Garanhir, king of Cardigan. This event happened in the time of Ambrosius. The people who escaped from the inundation landed in Ardudwy, in the country of Arvon, and the mountains of Snowdon, and other places, which had not been inhabited before that period."
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Triad 37 reads "The three disgraceful drunkards on the Isle of
Britain: First, Ceraint, the drunken king of Siluria, who in drunkenness burned all the corn far and near over all the country, so that a famine for bread arose. Second, Vortigern, who in his drink gave the Isle of Thanet to Horsa that
80:. Seithenyn (named in some later sources as being the son of Seithyn Saidi), was in charge of the embankment there, and as such, it was his failure to discharge his duties which led to its drowning. Seithenyn is also listed in the
61:), in the kingdom of the legendary Gwyddno Garanhir, but neglected them one night because of his drunkenness. Because of this neglect, the sea overran it.
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Trioedd Ynys
Prydein: The Triads of the Island of Britain
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Cantre'r
Gwaelod is said to lie beneath the waters of
86:Three Disgraceful Drunkards of the Isle of Britain
121:posited a connection between Seithenyn and the
40:Llyfr Du Caerfyrddin (Black Book of Carmarthen)
129:tribe living in what is now the north west of
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259:Celtic folklore, Welsh and Manx
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275:Peacock, Thomas Love (1829).
241:. University of Wales Press.
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277:The Misfortunes of Elphin
112:The Misfortunes of Elphin
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109:'s 1829 Arthurian novel
98:(founder and patron of
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26:) sometimes known as
59:the Plain of Gwyddno
256:Rhys, John (1901).
173:, pp. 382–384.
107:Thomas Love Peacock
279:. Thomas Hookham.
248:978-1-78316-305-2
68:off the coast of
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96:Saint Tudno
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288:Categories
266:4 February
158:References
70:Ceredigion
57:(English:
46:(English:
24:Seithennin
20:Seithenyn
219:Rhys 1901
183:Rhys 1901
171:Rhys 1901
100:Llandudno
123:Setantii
74:Aberdyfi
131:England
50:Hundred
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127:Celtic
137:Notes
78:Wales
72:near
53:) or
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268:2023
243:ISBN
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