 The description in Bishop Gregory of Tours' "History of the Franks" of the basilica of Saint-Martin, built at Tours by Saint Perpetuus (bishop 460-490) at the beginning of the period and at the time on the edge of Frankish territory, gives cause to regret the disappearance of this building, one of the most beautiful Merovingian churches, which he says had 120 marble columns, towers at the East end, and several mosaics