Complex sentence: In the 19th century, several mansions were built on the higher ground to the north of the old village, such as De Hemelse Berg which was destroyed in 1944, and Hartenstein.
Split into simpler sentences: In the 19th century, several mansions were built on the higher ground to the north of the old village. Some of these were De Hemelse Berg, which was destroyed in 1944, and Hartenstein.