The son of Gorbonianus was a legendary king of the Britons as recounted by Geoffrey of Monmouth. He was a son of King Gorbonianus but was never given a name in the text. He came to power in 305BC.^[1]

According to Geoffrey, he was a good and prudent king who emulated his uncle and predecessor, Elidurus. He was just and compassionate to his people and never faltered in his righteousness to them.^[2] When he died, he was succeeded by his cousin, Marganus, the son of Archgallo.

In Layamon's Brut by Layamon he is named as Lador,^[3] but rules for a short time.