Complex sentence: Charles Colbert, marquis de Croissy (1625--July 28,1696), French diplomatist, like his elder brother Jean Baptiste Colbert, began his career in the office of the minister of war Le Tellier.
Split into simpler sentences: Charles Colbert, marquis de Croissy (1625--July 28,1696) was a French diplomatist. Like his elder brother Jean Baptiste Colbert, began his career in the office of the minister of war Le Tellier.