- Mar 1 Thomas Campion, English physician, composer, poet (Poemata), dies at 53
- Mar 2 Anne of Denmark, daughter of Danish King Frederik II and Queen Consort of James I of England, dies at 44
- Mar 13 Richard Burbage, English Shakespearean actor and painter, dies at about 52
- Mar 20 Matthias II, Holy Roman Catholic emperor (1611-19), dies