- Mar 10 Christian Friedrich Schale, composer
- Mar 10 Raphael Weiss, German composer and priest, born in Wangen (d. 1779)
- Mar 15 Nicolas Louis de Lacaille, French astronomer who mapped the stars of the Southern Hemisphere, born in Rumigny, France (d. 1762)
- Mar 21 Francis Lewis, signer (Declaration of Independence)
- Mar 25 Jean-Baptiste Canavas, Italian composer and cellist, born in Turin (d. 1784)
- Mar 29 John Ponsonby, Irish politician (d. 1789)