25 September

Across recorded history, 1,454 notable lives are recorded as having ended on 25 September. Below are the 24 most widely documented — ranked by how many language editions of Wikipedia carry an article about them.

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Erich Maria Remarque

1898–1970

German-born novelist

Erich Maria Remarque was a novelist known for writing works depicting the experiences of soldiers during war.

Wangari Muta Maathai

1940–2011

Kenyan environmentalist and politician who won the Nobel Peace Prize in 2004

Wangari Muta Maathai was an environmentalist who received the Nobel Peace Prize.

Leopold III of Belgium

1901–1983

king of the Belgians from 1934 to 1951

Leopold III of Belgium was a monarch who served as the king of the Belgians.

Nikolay Semyonov

1896–1986

Soviet physical chemist

Nikolay Semyonov was a Soviet chemist who conducted research on the mechanism of chemical chain reactions.

John B. Watson

1878–1958

American psychologist (1878

John B. Watson was an American psychologist who established the psychological school of behaviorism.

Mary Astor

1906–1987

American actress and author

Mary Astor was an American actress and novelist who appeared in numerous film, television, and stage productions.

Franco Modigliani

1918–2003

Italian-American economist

Franco Modigliani was an economist who conducted research on the saving behavior of households and the valuation of firms.

Lewis Milestone

1895–1980

Russian-American film director

Lewis Milestone was a Russian-American film director known for his work in the motion picture industry.

Marie Under

1883–1980

Estonian poet

Marie Under was an Estonian poet known for her extensive body of literary work.

Nobuo Matsunaga

1921–2007

Japanese association football player

Nobuo Matsunaga was an association football player who also served as an association football coach.

Paul Ehrenfest

1880–1933

Austrian and Dutch theoretical physicist

Paul Ehrenfest was a theoretical physicist who made significant contributions to the development of statistical mechanics and quantum theory.

Lucien Febvre

1878–1956

French historian

Lucien Febvre was a French historian who co-founded the Annales school of historical thought.

Andy Williams

1927–2012

American singer

Andy Williams was an American singer who hosted a long-running television variety show.

Marion Zimmer Bradley

1930–1999

American novelist and editor

Marion Zimmer Bradley was an American novelist and editor known for her contributions to the science fiction and fantasy genres.

Arnold Palmer

1929–2016

American golfer

Arnold Palmer was an American golfer who achieved widespread recognition for his professional career in the sport.

David McCallum

1933–2023

Scottish actor

David McCallum was a Scottish actor known for his roles in film, television, and stage productions.

Alejandra Pizarnik

1936–1972

Argentinian poet

Alejandra Pizarnik was an Argentinian poet known for her extensive body of literary work.

Étienne Jacques Joseph Alexandre Macdonald

1765–1840

Marshal of France

Étienne Jacques Joseph Alexandre Macdonald was a Marshal of France who served as a military officer.

Walter Pidgeon

1897–1984

Canadian actor

Walter Pidgeon was a Canadian actor who performed in film, television, and stage productions.

Frederica of Baden

1781–1826

Swedish Queen

Frederica of Baden was a Swedish queen who served as the consort of King Gustav IV Adolf.

Ulrich von Wilamowitz-Moellendorff

1848–1931

German classical philologist

Ulrich von Wilamowitz-Moellendorff was a German classical philologist who contributed extensively to the study of ancient Greek literature and culture.

Luigi Allemandi

1903–1978

Italian footballer

Luigi Allemandi was an Italian association football player who also served as a professional coach.

Urie Bronfenbrenner

1917–2005

Russian American developmental psychologist

Urie Bronfenbrenner was a developmental psychologist who formulated the ecological systems theory to explain how environment influences human development.

S. P. Balasubrahmanyam

1946–2020

Indian playback singer

S. P. Balasubrahmanyam was an Indian playback singer who recorded thousands of songs for various film industries.

Source: Wikidata, released into the public domain under CC0. Snapshot: 2026-07. Names, dates and roles come from Wikidata; summaries are condensed from it. Nothing here is generated to fill a gap.