The baths remained in use until the 6th century. From the mid 4th century a Christian pilgrimage site came into being, known as the "titulus Fasciolae", close to the baths near the Church of "Santi Nereo e Achilleo". The baths thus became useful to pilgrims and the religious community for their water supply. In 537 during the Gothic War, Vitiges of the Ostrogoths laid siege to Rome and severed the city's water supply. Shortly thereafter the baths were abandoned. Located too far away from the still populated area of Rome, the baths were mostly disused but in the 6th and 7th centuries were apparently used for the burials of pilgrims who died after being cared for in the nearby Xenodochium of "Santi Nereo ed Achilleo". Some simple tombs from this era have been found inside the bath area.