List of Famous people who died at 93

André Goosse was a Belgian grammarian. The son-in-law of Maurice Grevisse, he took over editing and updating Grevisse's last book, Le Bon Usage. In 1988, he married the Belgian writer France Bastia. Professor at the Université Catholique de Louvain, he was also the president of the Conseil international de la langue française.

Paolo Soleri was an Italian architect. He established the educational Cosanti Foundation and Arcosanti. Soleri was a lecturer in the College of Architecture at Arizona State University and a National Design Award recipient in 2006. He coined the concept of 'arcology' – a synthesis of architecture and ecology as the philosophy of democratic society. He died at home of natural causes on 9 April 2013 at the age of 93.

Siegfried Köhler was a German conductor and composer of classical music. He worked as general music director of opera houses such as Hessisches Staatstheater Wiesbaden and the Royal Swedish Opera. Köhler conducted premieres of works by Hans Werner Henze and Volker David Kirchner, among others, and revived rarely performed operas. He also composed music for the stage and taught at universities of music in Cologne and Saarbrücken.

Luc Benoît Valérie Jean Laurent Marie Versteylen was a Flemish Jesuit priest and founder of the environmental movement Agalev.

Milko Kelemen was a Croatian composer.

Diana Olivia Winifred Maud Cooper, Viscountess Norwich was an English aristocrat who was a famously glamorous social figure in London and Paris. As a young woman, she moved in a celebrated group of intellectuals known as the Coterie, most of whom were killed in the First World War. She married one of the few survivors, Duff Cooper, later British Ambassador to France. After his death, she wrote three volumes of memoirs which reveal much about early 20th-century upper-class life.

Camilla Horn was a German dancer and a film star of the silent and sound era. She starred in several Hollywood films of the late 1920s and in a few British and Italian productions.

Georges Jean Painvin was a French geologist and industrialist, best known as the cryptanalyst who broke the ADFGX/ADFGVX cipher used by the Germans during the First World War.

Éva Besnyő (1910–2003) was a Dutch-Hungarian photographer who participated in the Nieuwe Fotografie movement.

Hans Walter Kosterlitz FRS was a German-born British biochemist.