Eurycratides was a king of Sparta

Kings of Sparta

Sparta was an important Greek city-state in the Peloponnesus. It was unusual among Greek city-states in that it maintained its kingship past the Archaic age. It was even more unusual in that it had two kings simultaneously, coming from two separate lines...

 from the Agiad dynasty whose reign began in around 615 BC. He was the thirteenth king of his line having succeeded his father Anaxander

Anaxander

Anaxander or Anaxandros was king of Sparta .He was 12th of the Agids line of Spartan kings, son of Eurycrates and father to Eurycratides.-References:*http://www.ancientlibrary.com/smith-bio/0172.html...

. His name is derived from the Greek

Greek language

Greek is an independent branch of the Indo-European family of languages. Native to the southern Balkans, it has the longest documented history of any Indo-European language, spanning 34 centuries of written records. Its writing system has been the Greek alphabet for the majority of its history;...

: "Ευρύ" - "eury", meaning "wide". He reigned during a devastating period of war with Tegea. Eurycratides is mentioned in The Histories of Herodotus In 590 BC, Eurycratides was succeeded by his son Leon.