List of Famous people who died at 90

Richard Seifert was a Swiss-British architect, best known for designing the Centre Point tower and Tower 42, once the tallest building in the City of London. His eponymously named practice – R. Seifert and Partners was at its most prolific in the 1960s and 1970s, responsible for many major office buildings in Central London as well as large urban regeneration projects in other major British cities.

Valentin Lavrentievich Yanin was a leading Russian historian who authored 700 books and articles. He had also edited a number of important journals and primary sources, including works on medieval Russian law, sphragistics and epigraphy, archaeology and history. His expertise was medieval Rus' especially Novgorod the Great, where he had headed archaeological digs beginning in 1962.

Rolf Osterwald, better known as Hazy Osterwald was a Swiss jazz bandleader, trumpeter, and vibraphonist.

Carlos Páez Vilaró was a Uruguayan abstract artist, painter, potter, sculptor, muralist, writer, composer and constructor.

Cor Edskes was one of the most important authorities on the history of organ building in Northern Europe. He acted as the consultant for the restoration of many of Europe's most important historical organs, including those in the Nieuwe Kerk (Amsterdam) and Roskilde Cathedral.

Luis Alberto Monge Álvarez was the President of Costa Rica from 1982 to 1986. He also served as Costa Rica's first Ambassador to Israel from 1963 until 1966.

Harold A. Rosen was an American electrical engineer, known as "the father of the geostationary satellite", and "father of the communications satellite". He formed and led the team that designed and built the first geosynchronous communications satellite, Syncom, for Hughes Aircraft Company.

Rosalind Elias was an American mezzo-soprano who enjoyed a long and distinguished career at the Metropolitan Opera. She was best known for creating the role of Erika in Samuel Barber's Vanessa in 1958.

Georg Henri Anton "Joris" Ivens was a Dutch documentary filmmaker. Among the notable films he directed or co-directed are A Tale of the Wind, The Spanish Earth, Rain, ...A Valparaiso, Misère au Borinage (Borinage), 17th Parallel: Vietnam in War, The Seine Meets Paris, Far from Vietnam, Pour le Mistral and How Yukong Moved the Mountains.

Frithjof Harold Bergmann was a German professor of philosophy at the University of Michigan, where he taught courses on existentialism, continental philosophy, Hegel, and Marx. Furthermore, he was the founder of the New Work movement.