13 years
Valentinian I was born in 321.
Valentinian I died on 375-11-17.
Valentinian II was born in 371.
Valentinian III was born on July 2, 419.
Valentinian III was born on July 2, 419.
Valentinian II died on 392-05-15.
There were three emperors called Valentinian (I, II, III)
Valentinian III died on March 16, 455 at the age of 35.
Valentinian III died on March 16, 455 at the age of 35.
Valentinian III was born on July 2, 419 and died on March 16, 455. Valentinian III would have been 35 years old at the time of death or 1596 years old today.
Just under 10 years, he was on the throne from 6 July 1189 to 6 April 1199.
He died of old age