Caducanus a Welsh divine, was bishop of Bangor, but, leaving his bishopric, he became a Cistercian monk in Monasterio Durensi, his bishopric not being rich, and at that time very troublesome on account of the civilwars. Caducanus "was no less happy than industrious in his endeavors, writing a book of sermons, and another called Speculum Christianorum." He died in 1225. See Fuller, Worthies of England (ed. Nuttall), iii, 494.