List of kings of Sparta

Sparta was an important Greek city-state in the Peloponnesus. It was unusual in that it had a diarchial system, with two kings ruling at the same time. The kings were called "Arkhagêtai". They were hereditary rulers, and came from two separate dynasties. According to tradition, the two lines, the Agiads and Eurypontids, were descended from the twins Eurysthenes and Procles. These twins were said to be the descendants of Heracles, who conquered Sparta two generations after the Trojan War. The dynasties were named after the twins' grandsons, the kings Agis I and Eurypon. The "Agiad" line was regarded as being senior to the "Eurypontid" line.
Although there are lists of earlier Kings of Sparta, there is little evidence to show that any kings existed before the middle of the 6th century BC.
Legendary kings.
Many kings of Sparta are described in Greek mythology.
Heraclids.
Agiad dynasty.
The dynasty was named after its second king, Agis.
Eurypontid dynasty.
The dynasty is named after its third king Eurypon. Not shown is Lycurgus, who served for a short time as regent either for the minor Charilaus (780–750 BC) or for Labotas (870–840 BC) the Agiad.
After Cleomenes III was defeated by Antigonus III Doson of Macedon and the Achaean League in the Battle of Sellasia, the Spartan kingship began to fail. Sparta was a republic from 221 to 219 BC. The dual monarchy was restored in 219 BC.
Nabis, who was regent for Pelops, deposed Pelops and took the throne for himself. He claimed to be descended from the Eurypontid king Demaratus. He ruled from 206–192 BC. Laconicus was the last known king of Sparta. He took the throne in 192 BC. The Achaean League took control of Sparta in 192 BC.