Constantius I Chlorus
Constantius I was born in 0242.  He died at the age of 64 in 0306.

 Helen of the Cross
Helen of the was born in 0248.  She died at the age of 80 in 0328.

 Constantine I The Great
Constantine I The was born in 0265 in Britain.  He died at the age of 71 in 0336.