Cordelia (or Cordeilla) was a legendary Queen of the Britons, as recounted by Geoffrey of Monmouth. She came to power in 855BC.
She was the youngest daughter of Leir and the second ruling queen of pre-Roman Britain. There is no independent historical evidence for her existence. She is traditionally identified with the minor character Creiddylad from Welsh tradition, but this identification has been doubted by scholars.
Legend
thumb|left|upright|Cordelia by [[Pierce Francis Connelly]]
Cordelia was Leir's favourite daughter, being the younger sister to Goneril and Regan. When Leir decided to divide his kingdom among his daughters and their husbands, Cordelia refused to flatter him. In response, Leir refused her any land in Britain or the blessing of any husband. Regardless, Aganippus, the king of the Franks, courted her, and Leir granted the marriage but denied him any dowry. She moved to the royal court at Karitia in Gaul and lived there for many years.
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