Complex sentence: Francis Thomas-Fitzmaurice, 3rd Earl of Kerry (9 September 1740-4 July 1818) was an Irish peer, whose extravagance led to the loss of all his Irish estates.
Split into simpler sentences: Francis Thomas-Fitzmaurice, 3rd Earl of Kerry (9 September 1740-4 July 1818) was an Irish peer. His extravagance led to the loss of all his Irish estates.