Who was a populist politician and the effective ruler of Athens when Admetus was King of the Molossians?
Themistocles Themistocles ( ; Greek: Θεμιστοκλῆς "Themistoklẽs"; "Glory of the Law"; c. 524–459 BC) was an Athenian politician and general. He was one of a new breed of non-aristocratic politicians who rose to prominence in the early years of the Athenian democracy. As a politician, Themistocles was a populist, having the support of lower-class Athenians, and generally being at odds with the Athenian nobility. Elected archon in 493 BC, he convinced the polis to increase the naval power of Athens, a recurring theme in his political career. During the first Persian invasion of Greece he fought at the Battle of Marathon (490 BC) and was possibly one of the ten Athenian "strategoi" (generals) in that battle.
Cleombrotus I Cleombrotus I (Greek: Κλεόμβροτος Α΄ ; died July 6, 371 BC) was a Spartan king of the Agiad line, reigning from 380 BC until 371 BC. Little is known of Cleombrotus' early life. Son of Pausanias, he became king of Sparta after the death of his brother Agesipolis I in 380 BC, and led the allied Spartan-Peloponnesian army against the Thebans under Epaminondas in the Battle of Leuctra. His death and the utter defeat of his army led to the end of Spartan dominance in ancient Greece. Cleombrotus was succeeded by his son Agesipolis II. His other son was Cleomenes II.