Emperor Flavius Valerius Constantius I of Rome
Flavius Valerius Constantius I of Rome was born in 0242.  He died at the age of 64 on July 25th, 0306 in Eboracum, York, England..

 Saint Helena Augusta
Helena Augusta was born in 0248 in Drepanum, Bithynia.  She died at the age of 80 in 0328.

 Emperor Constantine of Rome (The Great)
Constantine of Rome, known as The Great, was born in Nis, Serbia.  He died on May 22nd, 0337.  He was buried in Constantinople, Turkey.