When her lover failed to return home from a journey one day, Margaret became concerned. The unaccompanied return of his favorite hound alarmed Margaret, and the hound led her into the forest to his murdered body. That crime shocked Margaret into a life of prayer and penance. Margaret returned to his family all the gifts he had given her and left his home. With her child, she returned to her father's house, but her stepmother would not have her. Margaret and her son then went to the Franciscan friars at Cortona, where her son eventually became a friar. She fasted, avoided meat, and subsisted on bread and vegetables.