Saint Alberta (286) Mar 11, 2000 The Slaves of the Immaculate Heart of Mary She was a virgin and martyr, killed in a persecution under Diocletian. Gaius Aurelius Valerius Diocletianus (ca.245-313), Roman Emperor Diocletian. Marble bust, XVIIth century, Florence, Italy. On display at Château de Vaux-le-Vicomte, France. Share this:TweetWhatsAppShare on TumblrTelegramPocketLike this:Like Loading... Related