Roman empress and saint (c. 246–c. 330)

Flavia Julia Helena, also known as Helena of Constantinople and in Christianity as Saint Helena, was a Greek Augusta of the Roman Empire and mother of Emperor Constantine the Great as well as a Canonized saint in both Catholic and Orthodox Churches for her pivotal role in the spread of Christianity. She was born in the lower classes traditionally in the city of Drepanon, Bithynia, in Asia Minor, which was renamed Helenopolis.