Leto is the Titaness, acting as the Protector of the Youth. She is the daughter of Koios and Phoebe. Through Zeus, she is the mother of Apollo and Artemis. Her Roman counterpart is Latona.

Percy Jackson's Greek Gods

As the Titan Protector of the Young, Leto was the "world's first babysitter", and therefore popular with all the Titans since she would help them babysit their children.


Artemis, her daughter

Zeus came to fall in love with Leto, and charmed her into having an affair with him, which concluded with her becoming pregnant with twins (Apollo and Artemis). When Hera found out, she cast a curse: no land with roots in the earth could receive Leto when it was time for her to give birth, and yet Leto could only give birth on land. Due to this curse, Leto was driven from land to land, but unable to find a place to rest and give birth.

Eventually, Leto caught the attention of Python while trying to consult the Oracle of Delphi for advice, barely escaping with her life. Finally, Leto found refuge on the floating island of Delos and with the help of almost all the goddesses (except Hera), she first delivered Artemis, who helped her deliver Apollo for several days.

Through her children, Leto came to establish a reputation that she was a personage to be treated with all reverence, for no one could behave inappropriately towards her without incurring the wrath of her children: When she was traveling to Delphi to visit her son, the giant Tityos attempted to abduct her, but Apollo intervened and slew him with arrows and even ensured that Tityos' soul was tormented for all eternity as punishment. The second instance was when Niobe, the Queen of Thebes, slightly slandered Leto by claiming that she was better than the Titaness, for she had fourteen children (seven sons and seven daughters) while Leto only had two. To punish Niobe, an indignant Apollo and Artemis slew all of Niobe's children.

The Heroes of Olympus

The House of Hades

Leto was mentioned by her father, Koios, to Iapetus in Tartarus. He claimed that his daughter would likely fight for vengeance alongside the Titans after the way Zeus treated her even after she bore him two fine twins. It is implied in the same book that Leto was forced to reform at some point, as her father Koios stated that peaceful titans take longer to reform, hence why Iapetus hadn't seen her in a very long time. The exact reason, point in time, or ramifications of this aren't clear.

The Blood of Olympus

Leto was mentioned by Apollo. He told Leo the story of his and Artemis' birth and that Hera made every nature spirit turn her mother away so she couldn't give birth anywhere.

The Trials of Apollo

The Hidden Oracle

Her son Apollo mentions her frequently throughout the book. He also recalls that she used to call him 'a special snowflake'.

The Dark Prophecy

After Apollo drinks from the two springs of memory and forgetfulness to prepare for his trip into the cave of the Dark Oracle, he begins hallucinating and one of his visions is of Leto kneeling and pleading with Zeus to end Apollo's punishment and allow him to return to Olympus. However, Zeus refuses, saying that his real test is yet to come.


In The Dark Prophecy, Leto was described to have long golden hair that zigzagged down her back in an elaborate ladder weave, and bronze arms that glowed against her white sundress.


Latona is Leto's Roman counterpart. As Latona, she becomes more disciplined, warlike, and militaristic. In Roman mythology, she is the Titaness of Motherhood and Modesty.

Apollo Viria

Apollo, her son


Leto presumably possesses the standard powers of a Titaness.

  • Motherhood: As the Titaness of Motherhood, it is reasonable and logical to deduce that Leto has divine authority and absolute control over fertility. An example of an ability she derived from this province is:
    • Reproduction Manipulation: Leto has the power to manipulate and control the process in which parents produce offspring, as demonstrated by her birthing Apollo and Artemis (both of whom belonged to a new divine race more powerful than she was).
  • Archery: Like her brother Lelantos, Leto is well renowned for her archery skills, a trait shared with her children though they far surpass her own.

She may also have control over Light, as her sister was a goddess of night, and her children inherited the Sun and the Moon.

The Trials of Apollo
Core Series: The Hidden Oracle | The Dark Prophecy | The Burning Maze | The Tyrant's Tomb | The Tower of Nero
Main Characters: Apollo/Lester Papadopolous | Meg McCaffrey | Peaches | Leo Valdez | Calypso | Grover Underwood | Piper McLean | Reyna Ramírez-Arellano | Frank Zhang | Hazel Levesque
Secondary Characters: Percy Jackson | Nico di Angelo | Will Solace | Chiron | Austin Lake | Kayla Knowles | Hemithea | Josephine | Georgina | Lityerses | Trophonius | Gleeson Hedge | Mellie Hedge | Chuck Hedge | Medea | Jason Grace | Herophile | Lavinia Asimov | Don | Tyson | Ella | Tarquin | Claudia
Minor Characters: Sally Jackson | Rachel Elizabeth Dare | Thalia Grace | Mrs. O'Leary | Festus | Cade | Mikey | Harley | Connor Stoll | Miranda Gardiner | Cecil Markowitz | Ellis Wakefield | Sherman Yang | Damien White | Malcolm Pace | Paolo Montes | Germani | Agamethus | Olujime | Phillip McCaffrey | Hunter Kowalski | Sssssarah | Prickly Pear | Aloe Vera | Joshua | Naevius Sutorius Macro | Incitatus | Crest | Tristan McLean | Bombilo | Aurum | Argentum | Julia
Olympian Gods (Greek & Roman): Zeus/Jupiter | Hera/Juno | Poseidon/Neptune | Demeter/Ceres | Ares/Mars | Athena/Minerva | Artemis/Diana | Hephaestus/Vulcan | Aphrodite/Venus | Hermes/Mercury | Dionysus/Bacchus | Hades/Pluto
Minor Gods: Nero | Iris | Britomartis | Commodus | Styx | Caligula | Terminus | Lupa | Harpocrates
Titans: Rhea | Leto | Mnemosyne | Helios
Monsters and Magical Creatures: Python | Nosoi | Karpoi | Palikos | Myrmeke | Colossus Neronis | Blemmyae | Gryphon | Carthaginian Serpent | Scythian Dracaena | Cynocephali | Centaur | Cyclops | Yale | Satyr/Faun | Strix | Dryad | Dragon | Pandai | Eurynomos | Skeleton Warriors | Zombie | Raven
Related Content: Rick Riordan | Percy Jackson and the Olympians | The Heroes of Olympus | Demigods & Magicians | Camp Half-Blood Confidential | Camp Jupiter Classified: A Probatio’s Journal | Percy Jackson Demigod Collection
Community content is available under CC-BY-SA unless otherwise noted.