Callan, County Kilkenny
Butler was born at Callan, County Kilkenny, Ireland. Lady Abbess Knatchbull of the English Benedictine Dames at Ghent was her aunt and Butler was sent to her for her education. Butler petitioned, when she was twelve years old to be allowed enter the order. She was allowed to enter two years later. She made her religious profession 4 November 1657, at the English Benedictine convent at Boulogne, at the age of sixteen.