Complex sentence: She died following the birth of Thomas, aged only 23, and in 1800 Exeter took as his third wife Elizabeth Anne Burrell, daughter of Peter Burrell and former wife of Douglas Hamilton, 8th Duke of Hamilton.
Split into simpler sentences: She died following the birth of Thomas, aged only 23. In 1800 Exeter took as his third wife Elizabeth Anne Burrell, daughter of Peter Burrell and former wife of Douglas Hamilton, 8th Duke of Hamilton.