Complex sentence: François-Xavier Octavie Fontaine (7 November 1762 in Saint-Remy Haute-Saône-17 May 1812 in Paris) served in the French military in the American War of Independence, the French Revolutionary Wars, and the Napoleonic Wars.
Split into simpler sentences: François-Xavier Octavie Fontaine, born 7 November 1762 in Saint-Remy Haute-Saône and died 17 May 1812. He served in the French military in the American War of Independence, the French Revolutionary Wars, and the Napoleonic Wars.