- Mar 1 Albin Francisco Schoepf, Polish-American Brigadier General (Union Army), born in Podgórze, Kraków, Poland (d. 1886)
- Mar 1 Charles Champion Gilbert, American Brigadier General (Union Army), born in Zanesville, Ohio (d. 1903)
- Mar 4 Jules Antoine Lissajous, French mathematician (d. 1880)
- Mar 7 Victor Masse, French composer, born in Lorient, France (d. 1884)
- Mar 8 Ignacy Lukasiewicz, Polish engineer, businessman and inventor, born in Zaduszniki, Mielec, Austrian Empire (d. 1882)
- Mar 10 Willem Roelofs, Dutch painter and lithographer, born in Amsterdam (d. 1897)
- Mar 11 Allison Nelson, Brigadier General (Confederate Army), (d. 1862)
- Mar 13 Moritz von Strachwitz, German poet, born in Peterwitz, Silesia (d. 1847)
- Mar 14 Teresa of the Two Sicilies, Empress of Brazil (1843-89), born in Naples, Two Sicilies (d. 1889)
- Mar 16 John Pope, American Major General (Union Army), born in Louisville, Kentucky (d. 1892)
- Mar 16 Rosa Bonheur, French landscape painter (Buffalo Bill)
- Mar 22 Ahmed Djevdet Pasha, Turkish minister of Education/Justice
- Mar 22 Isaac D Fransen van de Putte, Dutch premier (1866)
- Mar 22 Seth Williams, American Brevet Major General (Union Army), born in Augusta, Maine (d. 1866)
- Mar 29 Joseph Quinaux, Belgian painter (landscape paintings), born in Namen, Belgium (d. 1895)
- Mar 31 Rafael Hernando, composer