Historical clue formulations

• Grand duke of Luxembourg until 2025 — 2026-04-24
• Painter Matisse — 2026-01-28
• Painter Rousseau — 2024-09-08
• French name that is an anagram of a German river — 2023-04-09
• Painter Matisse — 2023-02-22
• Artist ___ de Toulouse-Lautrec — 2021-12-04
• Artist Matisse — 2021-03-22
• Milliner Bendel with a bygone chain of women's accessories stores — 2021-01-08
• Mathematician Poincaré with a famous conjecture — 2020-12-06
• French philosopher Bergson — 2020-08-22
• Painter Matisse — 2020-07-27
• Artist Matisse — 2019-10-08
• One of several French kings — 2018-12-15
• Matisse who painted "La Danse" — 2017-08-06
• Artist ___ de Toulouse-Lautrec — 2017-04-19
• Painter Matisse — 2015-07-22
• Artist Matisse — 2014-12-08
• Bendel of fashion — 2013-11-05
• Painter Matisse — 2013-02-04
• Artist Rousseau — 2012-06-20
• Photographer Cartier-Bresson — 2011-05-20
• Painter Matisse — 2011-04-14
• Artist Rousseau — 2009-10-11
• Painter Matisse — 2007-08-21
• Artist Matisse — 2007-04-25
• Artist ___ de Toulouse-Lautrec — 2006-11-22
• "L'Évolution créatrice" author Bergson — 2006-03-18
• Painter Matisse — 2006-01-10
• With 63-Across, first two names of Guy de Maupassant — 2005-07-18
• Rousseau or Matisse — 2004-11-02
• Photographer Cartier-Bresson — 2003-07-12
• Painter Matisse — 2003-01-06
• Artist Toulouse-Lautrec — 2002-07-03
• Photographer Cartier-Bresson — 2001-12-26
• Fashionable Bendel — 2001-03-16
• Painter Matisse — 2001-02-07
• Artist Matisse — 2001-01-23
• Artist Rousseau — 2000-06-14
• Artist Toulouse-Lautrec — 1999-03-21
• Photographer Cartier-Bresson — 1998-04-08
• Artist Matisse — 1998-03-16
• Artist Toulouse-Lautrec — 1997-12-03
• Artist Matisse — 1997-11-03
• Painter Rousseau — 1996-10-19
• Clothing merchant Bendel — 1996-05-23
• Artist Toulouse-Lautrec — 1995-09-07
• Composer Duparc — 1994-07-26
• Painter Rousseau — 1994-03-13