Pleistarchus ( grc-gre, Πλείσταρχος ; died c. 458 BC) was the

Agiad The Agiad dynasty was one of the two royal families of Sparta, a powerful city-state of Ancient Greece. The Agiads were seniors to the other royal house, the Eurypontids, with whom they had an enduring rivalry. Their hypothetical founder was Agis I ...

King of Sparta For most of its history, the ancient Greek city-state of Sparta in the Peloponnese was ruled by kings. Sparta was unusual among the Greek city-states in that it maintained its kingship past the Archaic age. It was even more unusual in that it had ...

from 480 to 458 BC.

Biography

Pleistarchus was born as a

prince A prince is a male ruler (ranked below a king, grand prince, and grand duke) or a male member of a monarch's or former monarch's family. ''Prince'' is also a title of nobility (often highest), often hereditary, in some European states. T ...

, likely the only son of King

Leonidas I Leonidas I (; grc-gre, Λεωνίδας; died 19 September 480 BC) was a king of the Greek city-state of Sparta, and the 17th of the Agiad line, a dynasty which claimed descent from the mythological demigod Heracles. Leonidas I was son of Kin ...

and Queen Gorgo. His grandparents were Kings Anaxandridas II and

Cleomenes I Cleomenes I (; Greek Κλεομένης; died c. 490 BC) was Agiad King of Sparta from c. 524 to c. 490 BC. One of the most important Spartan kings, Cleomenes was instrumental in organising the Greek resistance against the Persian Empire of Dariu ...

. He was born from an avunculate marriage – his parents were

uncle An uncle is usually defined as a male relative who is a sibling of a parent or married to a sibling of a parent. Uncles who are related by birth are second-degree relatives. The female counterpart of an uncle is an aunt, and the reciprocal rela ...

and niece. His uncle Cleombrotus was his tutor. Pleistarchus' father King Leonidas perished in 480 BC at the Battle of Thermopylae. For the early part of Pleistarchus's reign, his uncle Cleombrotus acted as regent; after Cleombrotus's death in 479 BC, Pleistarchus's cousin

Pausanias Pausanias ( el, Παυσανίας) may refer to: *Pausanias of Athens, lover of the poet Agathon and a character in Plato's ''Symposium'' *Pausanias the Regent, Spartan general and regent of the 5th century BC * Pausanias of Sicily, physician of t ...

was

regent A regent (from Latin : ruling, governing) is a person appointed to govern a state '' pro tempore'' (Latin: 'for the time being') because the monarch is a minor, absent, incapacitated or unable to discharge the powers and duties of the monarchy ...

. It is unknown whether Pleistarchus was married. He died without an heir, and was succeeded by

Pleistoanax Pleistoanax, also spelled Plistoanax, ( grc-gre, Πλειστοάναξ) was Agiad king of Sparta from 458 to 409 BC. He was the leader of the peace party in Sparta at a time of violent confrontations against Athens for the hegemony over Greece. ...

, son of Pausanias.

Notes

{{Kings of Sparta 458 BC deaths 5th-century BC rulers 5th-century BC Spartans Agiad kings of Sparta Ancient child rulers Year of birth unknown