The Valentinian Dynasty

The Valentinian Dynasty was a part of the Dominate, and it was one with roots in a family that was prominant for most of the era. The emperors involved were:

Valentinian I (364 AD -- 375 AD) Gratian (375 AD -- 383 AD) Magnus Maximus (383 AD -- 388 AD) (Usurper) Valentinian II (383 AD -- 392 AD)

http://en.wikipedia.org/wiki/Valentinian_dynasty