Alcyoneus-Who

Alcyoneus was the oldest of the Thrakian Gigantes. Alcyoneus was immortal, but only in his homeland, Pallene. When Herakles came across him in his travels, he saw that Alcyoneus was asleep. Herakles then clubbed him or shot him with a volley of arrows, then dragged the wounded Alcyoneus out of Pallene to die. Once out of the confines of Pallene, Alcyoneus lost his immortality and died.
Alcyoneus' seven daughters were transformed into kingfishers.

Picture: http://www.theoi.com/Gigante/GiganteAlkyoneus.html