How many god ans goddesses in Greece are theare?

There are many, but only twelve had thrones on Mount Olympus.

1. Zeus
2. Poseidon
3. Hades
4. Hestia
5. Hera
6. Ares
7. Athena
8. Apollo
9. Aphrodite
10. Hermes
11. Artemis
12. Hephaestus