Emperor Severus II is captured and imprisoned at Tres Tabernae. He is later executed (or forced to commit suicide) after Galerius unsuccessfully invades Italy.
Flavius Valerius Severus (died September 307), also called Severus II, was a Roman emperor from 306 to 307. After failing to besiege Rome, he fled to Ravenna. It is thought that he was killed there or executed near Rome.