- Mar 9 Aleksander Orłowski, Polish painter, cartoonist and graphic artist, born in Warsaw, Poland (d. 1832)
- Mar 17 Roger Brooke Taney, 5th Chief Justice of U.S. Supreme Court (Dred Scott decision), born in Calvert, Maryland (d. 1864)
- Mar 19 Anton R Falck, Dutch minister of Education/diplomat
- Mar 31 Charles Cagniard de la Tour, French physicist (d. 1859)