Apollo (Attic, Ionic, and Homeric Greek: Ἀπόλλων, Apollōn (GEN Ἀπόλλωνος); Doric: Ἀπέλλων, Apellōn; Arcadocypriot: Ἀπείλων, Apeilōn; Aeolic: Ἄπλουν, Aploun; Latin: Apollō) 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. Apollo is known in Greek-influenced Etruscan mythology as Apulu. 

As the patron of Delphi (Pythian Apollo), Apollo was an oracular god—the prophetic deity of the Delphic Oracle. Medicine and healing are associated with Apollo, whether through the god himself or mediated through his son Asclepius, yet Apollo was also seen as a god who could bring ill-health and deadly plague. Amongst the god's custodial charges, Apollo became associated with dominion over colonists, and as the patron defender of herds and flocks. As the leader of the Muses (Apollon Musegetes) and director of their choir, Apollo functioned as the patron god of music and poetry. Hermes created the lyre for him, and the instrument became a common attribute of Apollo. Hymns sung to Apollo were called paeans.
Who is one of the most important deities?
of what religion?
what is a kouros?
who is his parents?
what is he known as in Etruscan mythology?
what is he the patron god of?
who created his lyre?
what were songs to him called?
does he have a twin?
who is his twin?
who is his son?
what did he defend?
who did he lead?
what could he cause to happen?
Apollo
Apollo (Attic, Ionic, and Homeric Greek: Ἀπόλλων, Apollōn (GEN Ἀπόλλωνος); Doric: Ἀπέλλων, Apellōn; Arcadocypriot: Ἀπείλων, Apeilōn; Aeolic: Ἄπλουν, Aploun; Latin: Apollō) is one of the most important and complex of the Olympian deities
Greek and Roman
Apollo (Attic, Ionic, and Homeric Greek: Ἀπόλλων, Apollōn (GEN Ἀπόλλωνος); Doric: Ἀπέλλων, Apellōn; Arcadocypriot: Ἀπείλων, Apeilōn; Aeolic: Ἄπλουν, Aploun; Latin: Apollō) is one of the most important and complex of the Olympian deities in classical Greek and Roman religion and Greek and Roman mythology
a beardless, athletic youth
The ideal of the kouros (a beardless, athletic youth),
Zeus and Leto
Apollo is the son of Zeus and Leto,
Apulu
 Apollo is known in Greek-influenced Etruscan mythology as Apulu. 
music and poetry
 Apollo functioned as the patron god of music and poetry
Hermes
 Hermes created the lyre for him,
paeans
Hymns sung to Apollo were called paeans.
Apollo is the son of Zeus and Leto, and has a twin sister, the chaste huntress Artemis.
Apollo is the son of Zeus and Leto, and has a twin sister, the chaste huntress Artemis.
Artemis
Apollo is the son of Zeus and Leto, and has a twin sister, the chaste huntress Artemis.
Asclepius
Apollo, whether through the god himself or mediated through his son Asclepius,
herds and flocks
Apollo became associated with dominion over colonists, and as the patron defender of herds and flocks
the Muses
As the leader of the Muses
ill-health and deadly plague
Apollo was also seen as a god who could bring ill-health and deadly plague. 