List of Famous people who died at 66

Stefan Habsburg-Lothringen, also called Archduke Stefan of Austria, was a member of the House of Habsburg-Lorraine and the eldest child and son of Archduke Anton of Austria and his wife Princess Ileana of Romania. He was a great-great Grandson of Queen Victoria, Tsar Alexander II, Queen Maria II of Portugal, and Ferdinand II of the Two Sicilies

Juan Jesús Posadas Ocampo was a Mexican bishop of the Catholic Church who served as the eighth archbishop of the see of Guadalajara and as a cardinal of the Roman Catholic Church.

László Kovács was a Hungarian football goalkeeper who was in the squad for Hungary in the 1978 FIFA World Cup. He also played for Videoton FC.

Jiichiro Date was a Japanese freestyle wrestler. He won the world cup in 1973 and an Olympic gold medal in 1976 and placed third at the 1975 World Championships.

Jean Wallace was an American television and film actress.

Louis Fortier was a biologist and oceanographer from Québec, Canada.

Philippe Amaury was a French media tycoon, and the son of publisher Émilien Amaury.

Jan Grzebski was a Polish railroad worker who fell into a coma in 1988 and woke up in 2007. He actually stayed in coma for four years but fully recovered only 19 years after.