perhaps Hyperion (to the extent that he also represented the Sun), would seem to be the result of cosmological necessity, for how could a world encircling river, or the Sun, be confined in Tartarus? As for other male offspring of the Titans, some seem to have participated in the Titanomachy, and were punished as a result, and others did not, or at least (like Helios) remained free. Three of Iapetus' sons, Atlas, Menoetius, and Prometheus are specifically connected by ancient sources with the war. In the Theogony both Atlas and Menoetius received punishments from Zeus, but Hesiod does not say for what crime exactly they were punished. Atlas was famously punished by Zeus, by being forced to hold up the sky on his shoulders, but none of the early sources for this story (Hesiod, Homer, Pindar, and Aeschylus) say that his punishment was as a result of the war. According to Hyginus however, Atlas led the Titans in a revolt against Zeus (Jupiter). The Theogony has Menoetius struck down by Zeus' thunderbolt and cast into Erebus "because of his mad presumption and exceeding pride". Whether Hesiod was using Erebus as another name for Tartarus (as was sometimes done), or meant that Menoetius's punishment was because of his participation in the Titanomachy is unclear, and no other early source mentions this event, however Apollodorus says that it was. Hesiod does not mention Prometheus in connection with the Titanomachy, but Prometheus does remain free, in the Theogony, for his deception of Zeus at Mecone and his subsequent theft of fire, for which transgressions Prometheus was famously punished by Zeus by being chained to a rock where an eagle came to eat his "immortal liver" every day, which then grew back every night. However Aeschylus's Prometheus Bound (as mentioned above) does have Prometheus say that he was an ally of Zeus during the Titanomachy. The female Titans, to the extent that they are mentioned at all, appear also to have been allowed to remain free. Three of these, according to the Theogony, become wives of Zeus: Themis, Mnemosyne, and Leto, the daughter of the Titans Coeus and Phoebe. Themis gives birth to the three Horae (Hours), and the three Moirai (Fates), and Mnemosyne gives birth to the nine Muses. Leto, who gives birth to the Olympians Apollo and Artemis, takes an active part on the side of the Trojans in the Iliad, and