173. Rarae in aliquibus civitatibus ecclesiae, paucorum Christianorum devotione, resurgerent. Acta Sincera, p. 130. Gregory of Tours, l. i. c. 28. Mosheim, p. 207, 449. There is some reason to believe that, in the beginning of the fourth century, the extensive dioceses of Liege, of Treves, and of Cologne, composed a single bishopric, which had been very recently founded. See Memoires de Tillemont, tom. vi. part i. p. 43, 411.