Cleomenes III (Ancient Greek: Κλεομένης) was one of the two kings of Sparta from 235 to 222 BC. He was a member of the Agiad dynasty and succeeded his father, Leonidas II . He is known for his attempts to reform the Spartan state.

Cleomenes III (died 219 bc) was a Spartan king (235–222) who reorganized Sparta’s political structure and struggled unsuccessfully to destroy the Achaean League. A member of the Agiad house, he was the son of King Leonidas II.

Cleomenes III ascended the throne of Sparta in 236 BC or 235 BC, after deposing his father, Leonidas II. His accession to power ended a decade-long period of heightened conflict between the two royal families.

May 9, 2018 · Cleomenes III (ca. 260-219 B.C.), the king of Sparta from 235 to 219, passed important reforms, revived Sparta's power, and was utterly defeated by Macedon. A vivid personality and dashing leader, he unfortunately lacked vision in politics.

Nov 10, 2018 · The Macedonian king, Antigonus III, pressed the Spartans back all the way to their native region of Laconia and finally dealt Cleomenes’ army a fatal blow at the 222 BCE Battle of Sellasia. Following the disastrous defeat at Sellasia, Cleomenes III fled to Egypt and Macedonia occupied Sparta.

Cleo'menes Iii. the 31st king of Sparta of the Agid line, was the son of Leonidas II. After the death of Agis IV., B. C. 240, Leonidas married his widow Agiatis to Cleomenes, who was under age, in order, as it seems, to bring into his family the inheritance of the Proclidae.

Cleomenes III was a significant figure in Spartan history, ascending to the throne around 235 BC as the son of Leonidas II. His reign emerged during a period of social and economic turmoil in Sparta, where the majority of land was concentrated in the hands of a few families, leaving many citizens disenfranchised.

Cleomenes III 236–220 BC. Cleomenes III reigned in Sparta about 235-219 B.C. He made a determined attempt to reform the social condition of Sparta along the lines laid down by Agis IV., whose widow Agiatis he married; at the same time he aimed at restoring Sparta's hegemony in the Peloponnese.

CLEO′MENES III., the 31st king of Sparta of the Agid line, was the son of Leonidas II. After the death of Agis IV., B. C. 240, Leonidas married his widow Agiatis to Cleomenes, who was under age, in order, as it seems, to bring into his family the inheritance of the Proclidae.

Cleomenes the third king of Sparta, was the son of the king of Sparta, Leonidas II, took the throne when his father died in 235 BC. His wife Agiatis initiated him in the reforms started by her first husband Agis IV.