Complex sentence: Nicolas-Joseph Beaurepaire (born January 7 1740, Coulommiers-died September 2 1792, Verdun) was a French officer, noted for his defense of Verdun in the Battle of Valmy against the Prussians.
Split into simpler sentences: Nicolas-Joseph Beaurepaire (January 7 1740-September 2 1792) was a French officer. Born in Coulommiers, he distinguished for his defense of Verdun in the Battle of Valmy against the Prussians.