Leto (Λητώ) is from the Lycian lada (woman, wife) — the Greek Titaness daughter of Coeus and Phoebe. **Mother by Zeus of the twin gods Apollo and Artemis** — pursued by a jealous Hera through every country and forbidden refuge on any land; **at last gave birth on the floating island of Delos**, which Zeus secured with chains to the seabed for the event. **Artemis was born first and immediately helped her mother deliver Apollo** — for which Artemis became the goddess of childbirth. **Worshipped throughout Lycia (now southern Turkey)** as a primary regional goddess.
Featured in the Homeric *Hymn to Apollo* and Callimachus's *Hymn to Delos*.
Leto reduces to one — the number of twin-divine mother.