Great bathhouses were built in Byzantine centers such as Constantinople and Antioch, and the popes allocated to the Romans bathing through "diaconia", or private Lateran baths, or even a myriad of monastic bath houses functioning in eighth and ninth centuries. The Popes maintained their baths in their residences which described by scholar Paolo Squatriti as " luxurious baths", and bath houses including hot baths incorporated into Christian Church buildings or those of monasteries, which known as "charity baths" because they served both the clerics and needy poor people. Public bathing were common in medivail Christendom larger towns and cities such as Paris, Regensburg and Naples. Catholic religious orders of the Augustinians' and Benedictines' rules contained ritual purification, and inspired by Benedict of Nursia encouragement for the practice of therapeutic bathing; Benedictine monks played a role in the development and promotion of spas. Protestantism also played a prominent role in the development of the British spas.