List of Famous people who died at 73

Stanley Armour Dunham was the maternal grandfather of the 44th U.S. President Barack Obama. He and his wife Madelyn Payne Dunham raised Obama from the age of 10 in Honolulu, Hawaii.

Princess Marie Alexandra of Schleswig-Holstein-Sonderburg-Glücksburg, since 1941 of Schleswig-Holstein was a member of the House of Schleswig-Holstein-Sonderburg-Glücksburg. Marie Alexandra was the fourth and youngest child of Wilhelm Friedrich, Duke of Schleswig-Holstein and his wife Princess Marie Melita of Hohenlohe-Langenburg. Her older brother Peter was the Duke of Schleswig-Holstein and Head of the House of Oldenburg from 10 February 1965 until his death on 30 September 1980.

Robert Casadesus was a renowned 20th-century French pianist and composer. He was the most prominent member of a distinguished musical family, being the nephew of Henri Casadesus and Marius Casadesus, husband of Gaby Casadesus, and father of Jean Casadesus. The preferred pronunciation of his last name is "Kah-zah-deh-su" with a silent final "s." Per live interview ca. 1970 of Robert Casadesus by announcer Bill Agee of KKHI-AM-FM San Francisco during a live San Francisco Symphony concert, Mr. Casadesus indicated that he pronounced his name as it is pronounced in Spanish, Kah-sah-deh'sus, final s pronounced.