Who was the older brother of person whose guard formed the French Royal Guard?
Louis Bonaparte Louis Napoléon Bonaparte (born Luigi Buonaparte; 2 September 1778 – 25 July 1846) was a younger brother of Napoleon I, Emperor of the French. He was a monarch in his own right from 1806 to 1810, ruling over the Kingdom of Holland (a French client state roughly corresponding to the current Netherlands). In that capacity he was known as Louis I (Dutch: Lodewijk I; ] ).
Elzéar Auguste Cousin de Dommartin Elzéar Auguste Cousin de Dommartin (26 May 1768 in Dommartin-le-Franc – 9 August 1799 in Rosetta) became a French general during the French Revolutionary Wars, fought in Italy under Napoleon Bonaparte, and commanded the artillery division of the Armée d'Orient during the French invasion of Egypt in 1798.