Complex sentence: Construction of the original Collegiate Church of St. Mary, began no later than 1187 under Bishop Absalon located on the highest point near the new town of Havn, later Copenhagen.
Split into simpler sentences: Construction of the original Collegiate Church of St. Mary, began no later than 1187 under Bishop Absalon. The church was located on the highest point near the new town of Havn, later Copenhagen.