Complex sentence: She chose, however, to enter the monastery of the nuns of the Dominican Second Order, although she originally wanted to belong to the Order of Discalced Carmelites, as she was very devoted to their foundress, St. Teresa of Jesus.
Split into simpler sentences: She chose, however, to enter the monastery of the nuns of the Dominican Second Order. Although she originally wanted to belong to the Order of Discalced Carmelites, as she was very devoted to their foundress, St. Teresa of Jesus.