Original sentence: After finishing his courses at Gymnasium Paulinum in Westphalia, he attended the roman catholic boarding school Collegium Augustinianum Gaesdonck, where Hermann Dingelstad, later Bishop of Münster, was his teacher
Edited sentence: After finishing his courses at Gymnasium Paulinum in Westphalia, he attended the Roman Catholic boarding school Collegium Augustinianum Gaesdonck, where Hermann Dingelstad, later Bishop of Münster, was his teacher