 A Latin text from the late 13th century Cardiff claims that Geoffrey of Monmouth translated Welsh poems praising the ancient British kings, the author of which calls himself 'Frater Walensis madocus edeirnianensis'.Certain scholars argue that this poet is therefore Friar Madog ap Gwallter, stating his origins as in Edeirnion, known to have been mistakenly equated to Llanfihangel Glyn Myfyr.Only three of Madog's poems have survived.