 Complete the following phrase:  In May 1738 at the age of 9 he was nominally enrolled in the musketeers, as his aristocratic family chose military over civil service for him. He rose through the ranks, eventually joining the fr. as a lieutet in 1746. That same year he married Marie-Sophie, granddaughter of the celebrated Marshal Château-Renault. His regiment was called to serve in the War of the Austrian Succession. DEstaing served as aide-de-camp to Marshal Saxe throughout the Flanders campaigns of 174648. During these years he was promoted to colonel in command of Regiment de Rouergue, and was wounded at the 1748 