The Battle of Nicaea was fought in 193 between the forces of Septimus Severus and his eastern rival, Pescennius Niger. Severus defeated his rival, and ended his bid for the Roman Empire the next year at Issus. Events June 1 – Roman Emperor Didius Julianus is assassinated in his palace. ... Iznik (formerly Nicaea) is a city in Anatolia (now part of Turkey) which is known primarily as the site of two major meetings (or Ecumenical councils) in the early history of the Christian church. ... Emperor Septimius Severus Lucius Septimius Severus, (April 11, 146 - February 4, 211) was Roman emperor from April 9, 193 to 211. ... Pescennius Niger as emperor. ... Events June 1 – Roman Emperor Didius Julianus is assassinated in his palace. ... Emperor Septimius Severus Lucius Septimius Severus, (April 11, 146 - February 4, 211) was Roman emperor from April 9, 193 to 211. ... Pescennius Niger as emperor. ... This article or section does not cite its references or sources. ...