Complex sentence: His wife outlived him by several years, dying on 2 March 1850, and, having had no children of their own, the estate passed to Anne's nephew, Vice-admiral Sir Richard Hussey Moubray.
Split into simpler sentences: His wife outlived him by several years, dying on 2 March 1850. As the couple had no children, the estate passed to Anne's nephew, Vice-admiral Sir Richard Hussey Moubray.