Maximian (; c. 250 – c. July 310) was
Roman Emperor from 286 to 305. He was
Caesar from 285 to 286, then
Augustus from 286 to 305. He shared the latter title with his co-emperor and superior,
Diocletian, whose political brain complemented Maximian's military brawn. Maximian established his residence at
Trier but spent most of his time on campaign. In the late summer of 285, he suppressed rebels in Gaul known as the
Bagaudae. From 285 to 288, he fought against
Germanic tribes along the
Rhine frontier. Together with Diocletian, he launched a
scorched earth campaign deep into
Alamannic territory in 288, temporarily relieving the Rhine provinces from the threat of Germanic invasion.