List of Famous people who died at 90

Hans Rohrbach was a German mathematician. He worked both as an algebraist and a number theorist and later worked as cryptanalyst at Pers Z S, the German Foreign Office cipher bureau, during World War II. He was latterly known as the person who broke the American diplomatic O-2 cypher, a variant of the M-138-A strip cipher during 1943. Rohrbach wrote a report on the breaking of the strip cypher when he was captured by TICOM, the allied effort to roundup and seize captured German intelligence people and material.

Maria Wine was a Swedish-Danish poet and writer.

Gustaf Adolf "Gösta" Boltenstern Jr. was a Swedish officer and horse rider who competed at the 1932, 1948, 1952 and 1956 Summer Olympics.

Sir John Grey Gorton was the nineteenth Prime Minister of Australia, in office from 1968 to 1971. He led the Liberal Party during that time, having previously been a long-serving government minister.

Hjalmar "Hjallis" Johan Andersen was a speed skater from Norway who won three gold medals at the 1952 Winter Olympic Games of Oslo, Norway. He was the only triple gold medalist at the 1952 Winter Olympics, and as such, became the most successful athlete there.

Eva Aeppli was a Swiss artist.

Magda Szabó was a Hungarian novelist. Doctor of philology, she also wrote dramas, essays, studies, memoirs, poetry and children's literature. She is a founding member of the Digital Literary Academy. She is the most translated Hungarian author, with publications in 42 countries and over 30 languages.