Complex sentence: The title of Duc d'Auerstaedt (sometimes written Auerstädt) was created by Napoleon I, Emperor of the French, for the Marshal of France Louis Nicolas Davout in 1808 as a victory title rewarding and commemorating Davout's splendid victory at the Battle of Auerstaedt in 1806.
Split into simpler sentences: The title of Duc d'Auerstaedt (sometimes written Auerstädt) was created by Napoleon I, Emperor of the French, for the Marshal of France Louis Nicolas Davout in 1808. It was a victory title granted for Davout's splendid victory at the Battle of Auerstaedt in 1806.