Virgin martyr and miracle worker in death. She was stabbed to death on July 6 while resisting the advances of the son of her father's business partner. Maria was born in Corinaldo, Italy, the daughter of a farmer who moved the family to Ferriere di Conca, near Anzio. There Alexander Serenelli, a youth who lived in the same house, tried to seduce the young Maria. When she refused him, Alexander stabbed her repeatedly. Arrested for the murder, he was imprisoned and experienced a vision of Maria. Her cuase was opened becuase she was credited with some forty miracles after her death. She was canonized by Pope Pius XII (r. 1939-1958) in 1950, as a model of purity. Alexander attended her canonization. 

(Taken from Our Sunday Visitor's Encyclopedia of Saints)