Gustav Maria Leonhardt was a Dutch keyboardist, conductor, musicologist, teacher and editor. He was a leading figure in the historically informed performance movement to perform music on period instruments. Wikipedia
Born: May 30, 1928, 's-Graveland, Netherlands
Died: January 16, 2012 (age 83 years), Amsterdam, Netherlands
Spouse: Marie Amsler (m. ?–2012)
Partner: Marie Leonhardt