Y GODODDIN (C. 600, debated):
https://faculty.arts.ubc.ca/sechard/492godo.html
HISTORIA BRITTONUM by Nennius (C. 800):
https://www.gutenberg.org/files/1972/1972-h/1972-h.htm
ANNALES CAMBRIAE (Annals of Wales, C. 950):
https://www.vortigernstudies.org.uk/artsou/annales.htm
ROMAN DE BRUT by Wace (1155):
https://www.gutenberg.org/cache/epub/10472/pg10472-images.html
LANCELOT, THE KNIGHT OF THE CART by Chrétien de Troyes (1175-1181):
https://www.poetryintranslation.com/PITBR/French/DeTroyesLancelotPartI.php
SIR GAWAIN AND THE GREEN KNIGHT by Anonymous/”Gawain Poet” (late 14th century):
https://www.poetryintranslation.com/PITBR/English/GawainAndTheGreenKnight.php
STANZAIC MORTE ARTHUR and ALLITERATIVE MORTE ARTHUR (late 14th-early 15th century) by Anonymous:
https://metseditions.org/editions/ArW747G4izeLNHe99xFaVNKS5kwdvz5dl
LE MORTE DE ARTHUR by Thomas Malory (1485):
https://www.gutenberg.org/files/1251/1251-h/1251-h.htm
IDYLLS OF THE KING by Alfred Tennyson (1859-1885):
https://www.gutenberg.org/cache/epub/610/pg610-images.html#link2H_4_0013
THE ONCE AND FUTURE KING by T.H. White (1958):
https://gutenberg.ca/ebooks/whiteth-onceandfutureking/whiteth-onceandfutureking-00-e.html