Choregos
In the theatre of ancient Greece, the choregos (pl. choregoi; Greek: χορηγός, Greek etymology: χορός "chorus" + ἡγεῖσθαι "to lead") was a wealthy Athenian citizen who assumed the public duty, or choregiai, of financing the preparation for the chorus and other aspects of dramatic production that were not paid for by the government of the polis or city-state.