Complex sentence: The Sisters of Charity of Seton Hill were founded by Sister Aloysia Lowe was accompanied by Sisters Blanche O'Keefe, Maria Theresa O'Donnell and Maria Kavanaugh and two novices.
Split into simpler sentences: The Sisters of Charity of Seton Hill were founded by Sister Aloysia Lowe. She was accompanied by Sisters Blanche O'Keefe, Maria Theresa O'Donnell and Maria Kavanaugh and two novices.