Flavia Julia Helena, the mother of Constantine the Great. When her husband Constantius was raised to the dignity of Caesar by Diocletian, A.D. 292, he was compelled to repudiate his wife, to make way for Theodora, the step-child of Maximianus. Subsequently, when her son succeeded to the purple, Helena was treated with marked distinction, and received the title of Augusta. She died about 328 and was a Christian.

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