Claude Joseph Rouget de Lisle (sometimes spelled de l'Isle or de Lile May 10, 1760, June 26, 1836) was a French army officer of the French Revolutionary Wars. He is known for writing the words and music of the Chant de guerre pour l'armee du Rhin in 1792, which would later be known as La Marseillaise and become the French national anthem. He enlisted into the army as an engineer and attained the rank of captain. A royalist, like his father, he refused to take the oath of allegiance to the new constitution. The song was composed at Strasbourg, where he was garrisoned. He died in poverty in 1836 at the age of 76. His ashes were transferred from Choisy-le-Roi cemetery to the Invalides in 1915 during WWI.