5. St. Helena (Elaine) of Colchester was born in 248 in Drepanum, Bithynia , Asia Minor; died in 328 in Constantinople, Roman Empire (now modern-day Istanbul, Turkey).
15. Constantine I, Emperor of the Roman Empire was born on 27 Feb 272 in Naissus, Moesia Superior (Nish), Serbia; died on 22 May 337 in Nicomedia (modern-day Izmit, Turkey).