Constantius I Chlorus ("the pale") was a member of the first Tetrarchy initially formed by Diocletian. In the Tetrarchy model, there are four rulers, two for the west and two for the east. The new government was installed as the Roman empire was experiencing attacks and needed more stability based on its large area. Initially Diocletian shared his power with his son-in-law Maximian, who was installed as Caesar in 285 AD. This proved ineffective, so two more men were installed as Augustus and Caesar in the east in 293 AD. This set-up seemed to work until Constantius died suddenly in 306 AD and his troops proclaimed his son, Constantine I, as emperor. This sparked years of civil war and ultimately ended with the fall of the Tetrarchy and reversion to a single emperor, Constantine, the founder of the House of Constantine, in 324 AD.