Březenec (Jirkov-Březenec) is a place, that 1992 belonged to Czechoslovakia and was situated in the administrative region Chomutov.
Březenec (Jirkov-Březenec) was formerly part of the German Empire. In the German Empire, the place was called Pirken. The place is now called Březenec (Jirkov-Březenec) and belongs to Czech Republic.