Lives of the Saints, by Alban Butler, Benziger Bros. ed. [1894], at sacred-texts.com
ACCORDING to the ancient Martyrologies, St. Margaret suffered at Antioch in Pisidia, in the last general persecution. She is said to have been instructed in the Faith by a Christian nurse, to have been persecuted by her own father, a pagan priest, and, after many torments, to have gloriously finished her martyrdom by the sword. From the East, her veneration was exceedingly propagated in England, France, and Germany, in the eleventh century, during the holy wars. Her body is now kept at Monte-Fiascone in Tuscany.