Françoise Sagan (; born Françoise Delphine Quoirez; 21 June 1935 – 24 September 2004) was a French playwright, novelist, and screenwriter. Sagan was known for works with strong romantic themes involving wealthy and disillusioned bourgeois characters. Her best-known novel was her first, ''Bonjour Tristesse'' (1954), which was written when she was a teenager.
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