Deinomenes was the father of Hieron I

Hiero I of Syracuse

Hieron I was the son of Deinomenes, the brother of Gelon and tyrant of Syracuse in Sicily from 478 to 467 BC. In succeeding Gelon, he conspired against a third brother Polyzelos. During his reign, he greatly increased the power of Syracuse...

, Gelo

Gelo

Gelo , son of Deinomenes, was a 5th century BC ruler of Gela and Syracuse and first of the Deinomenid rulers.- Early life :...

 (or Gelon), Thrasyboulos, and Polyzelos. The historian Herodotus

Herodotus

Herodotus was an ancient Greek historian who was born in Halicarnassus, Caria and lived in the 5th century BC . He has been called the "Father of History", and was the first historian known to collect his materials systematically, test their accuracy to a certain extent and arrange them in a...

 writes that his ancestors came from the island of Telos

Telos

-Companies:* Telos , a defense contractor and software business in Ashburn, Virginia* Telos Systems, a manufacturer of equipment for broadcasting stations...

 in the Aegean Sea

Aegean Sea

The Aegean Sea[p] is an elongated embayment of the Mediterranean Sea located between the southern Balkan and Anatolian peninsulas, i.e., between the mainlands of Greece and Turkey. In the north, it is connected to the Marmara Sea and Black Sea by the Dardanelles and Bosporus...

and were the founders of the city of Gela in southern Sicily. Deinomenes consulted an oracle about the fates of his children, and was told that Gelo, Hieron and Thrasyboulos were all destined to become tyrants.