Alcyoneus

Alcyoneus was one of the Gigantes from Greek mythology.

Gigantomachy
Alcyoneus was the king of the Gigantes who was from Pallene. So long as he was within his homeland, Pallene, he was immortal and could not be killed.

Alcyoneus was killed by Heracles. Heracles snuck up on him while he was asleep and disabled him with his club. Heracles then dragged the giant out of Pallene and he died.

Other Names

 * Alkyoneus