Apprenticeship As a teenager in the 1880s, Weill began an
apprenticeship at Salvador Mayer's antique shop on
Rue Laffitte. During her apprenticeship, Weill was introduced to the
art critic Claude Roger-Marx, through whom she developed an interest in the work of emerging painters. 's only one‑man exhibition, held at Galerie Berthe Weill in 1917. The exhibition was closed by the police on the grounds of nudity. On 1 December 1901, Weill used part of her dowry to open "Galerie B. Weill" at 25 Rue Victor‑Massé, calling it "a place for the young". In 1933, Weill published her
memoirs, an account of thirty years as an
art dealer. In 1941, Weill closed her gallery amidst rising
antisemitism and the outbreak of
World War II. In 1946, several painters whose work she had promoted organized an auction of donated artworks, with the proceeds used to support her in later life. An estimated ₣1.5 million was raised (equivalent to $147,000 in 2025), which supported Weill until her death. In 1948, the
Republic of France recognized her as a Chevalier of the
''Légion d'honneur'' for her contribution to
modern art. == Death ==