Complex sentence: That allowed them to construct the "Mission of Saint Francis Borgia" on the property which is considered the founding of Sacred Heart Church although the Jesuits did not take up permanent residence at White Marsh until about 1741 when a chapel was constructed.
Split into simpler sentences: That allowed them to construct the "Mission of Saint Francis Borgia" on the property which is considered the founding of Sacred Heart Church. However, the Jesuits did not take up permanent residence at White Marsh until about 1741 when a chapel was constructed.