Zipoetes I of Bithynia

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Ziopoetes I
Basileus of Bithynia
Kings of Bithynia
Reign 326 BC - 278 BC
Predecessor Bas
Successor Nicomedes I
Born 354 BC
Died 278 BC (age 76)

Zipoetes I, also Zipoites I or Ziboetes I, possibly Tiboetes I (Greek: Zιπoίτης or Zιβoίτης; lived c. 354 BC – 278 BC, ruled c. 326 BC – 278 BC; three syllables, oe is a diphthong) was the second independent ruler of Bithynia.


He succeeded his father Bas on the throne in 326 BC and reigned for forty-eight years, carrying on successful wars with Lysimachus and Antiochus, the son of Seleucus I Nicator.[1] In 315 BC he carried on a war against Astacus and Chalcedon, which failed in the face of a relief army sent by Antigonus I Monophthalmus.[2] In 301, after Antigonus' death, he attacked again, and was victorious, but Astacus was destroyed in the war. He founded a city which was called Zipoetium (after himself) at the foot of Mount Lypedron; the exact locations of both the city and the mountain are unknown.

He lived to the age of seventy-six, and left behind him four children, the eldest of whom, Nicomedes, succeeded him.[3] He was the first ruler of Bithyinia to assume the title of basileus (king), assuming this title in the year 297 BC.


  1. ^ Memnon, History of Heracleia, 6, 9
  2. ^ Diodorus Siculus, Bibliotheca, xix. 60
  3. ^ Memnon, 12; Stephanus, Ethnica, s.v. "Zipoition"


Preceded by
Dynast and King of Bithynia
326 BC – 278 BC
Succeeded by
Nicomedes I
Zipoetes II