In Byzantine times, the town was also referred to as  () or as  (). In the 4th century AD, the town became the seat of bishopric, with bishop Saint Tryphillius (Trifillios), a student of Saint Spyridon. Archaeological evidence indicates that the town regained much of its earlier significance in the early Christian period, and the presence of two or three basilicas with ''opus sectile'' decorations, along with marbles decorated with high relief indicate the presence of a relatively prosperous and sophisticated Christian society.