[titular see] Bononia, once the residential episcopal see of the city of that name, is a titular see of the Catholic Church. The city of Bononia lay within the ancient Roman province of Dacia Ripensis. Under its present name of Vidin, it is part of Bulgaria. Its first titular bishop was appointed on 12 December 1961. The Latin adjective by ... Found on http://en.wikipedia.org/wiki/Bononia_(titular_see)