Mar 2 Samuel Thomas von Sömmering, German physician (b. 1755) Mar 17 Laurent, 1st Marquis of Gouvion Saint-Cyr, French marshal, dies at 65 Mar 21 Johann Rudolf Wyss, Swiss folkorist and writer (Swiss Family Robinson), dies at 48 Feb 1830 Famous Deaths by Year Apr 1830 Famous People by Cause of Death Assassination Car Crash Hanging Killed in Action Plane Crash Poisoning