According to mythology Diana was born with her twin brother Apollo on the island of Delos. Apollo was her only real brother but she had many half brothers and sisters from her father. Her half-siblings were Vulcan, Minerva, Mercury, Bacchus, Mars, and Proserpine. Diana made a group of three with two other Roman deities: Egeria the water nymph, her servant and midwife helper; and Virbius, the god of the woods. Diana is a maiden goddess which means she can't marry.