Diana was known as the virgin goddess of childbirth and women. She was one of the three maiden goddesses, along with Minervaand Vesta, who swore never to marry. Oak groves and deer were especially sacred to her. Diana was born with her twin brother, Apollo, on the island of Delos, daughter of Jupiter and Latona. She made up a triad with two other Roman deities; Egeria the water nymph, her servant and assistant midwife; and Virbius, the woodland god.