(Ἀγαρίστη).
1. The daughter of Cleisthenes, tyrant of Sicyon, whom her father promised to give in marriage to the best of the Greeks. Suitors came to Sicyon from all parts of Greece, and among others Megacles, the son of Alcmaeon, from Athens. After they had been detained at Sicyon for a whole year, during which time Cleisthenes made trial of them in various ways, he gave Agariste to Megaeles. From this marriage came the Cleisthenes who divided the Athenians into ten tribes, and Hippocrates. (Hdt. 6.126_130; comp. Athen. 6.273b.c., 12.541, b. c.)