Answer:
Alcyoneus , a giant usually considered to be one of the Gigantes, slain by Heracles.
Chthoniusson son of Poseidon and Syme, who founded the first colony on the island of Syme, which was named after his mother.
Damysus , the fastest of all the Giants in the Greek mythology.
Enceladus, typically slain by Athena, said to be buried under Mount Etna in Sicily.