Apollo is one of the most important and complex of the Olympian deities in classical Greek and Roman religion and Greek and Roman mythology. The ideal of the kouros
(a beardless, athletic youth), Apollo has been variously recognized as a
god of music, truth and prophecy, healing, the sun and light, plague,
poetry, and more. Apollo is the son of Zeus and Leto, and has a twin sister, the chaste huntress Artemis.