Urbanus was a Roman usurper. History Urbanus declared himself emperor in either 271 or 272 AD, during the reign of Aurelian. He likely staged his revolt in Dalmatia. He was quickly defeated. He is possibly fictional. References Books External links "Urbanus", s.v. "Aurelian", De Imperatoribus Romanis site 271 deaths 3rd-century Roman usurpers Year of birth unknown Romans from unknown gentes