- Mar 11 Benjamin West, Anglo-American painter (Death of General Wolfe), dies at 81
- Mar 12 Alexander Mackenzie, Scottish born Canadian explorer, First European to cross North America, dies at roughly 56
- Mar 15 Clemens Maria Hofbauer, patron saint of Vienna (b. 1751
- Mar 22 American military hero Commodore Stephen Decatur, killed in a duel with Commodore James Barron at 41