These catacombs are thought to have been the private cemetery of Domitilla, the niece of Domitian (81-96), from the wealthy Flavian family. In 95, Domitilla's husband, Flavius Clemens, was denounced as a Christian and executed on the order of Domitian. Domitilla was exiled to the island of Pandataria, now known as the Isola di Ventotene. The catacombs are home to the Basilica dei Santi Nereo e Achilleo built from 390-395.