[https://www.newworldencyclopedia.org/entry/Hippolytus Hippolytus of Rome - New World Encyclopedia]
[https://www.newworldencyclopedia.org/entry/Hippolytus Hippolytus of Rome - New World Encyclopedia]
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==Source==
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''Dictionary of Saints'' by John J. Delaney, Doubleday & Company, Inc., Garden City, New York, copyright 1980 by John J. Delaney, All Rights Reserved. ISBN: 0-385-13594-7. Library of Congress Catalog Card Number 79-7783