Karl Grünwald (1899-1964) was an Austrian textiles trader and art collector and owner of one of the largest collection of Impressionist paintings.

In 1938, when Austria was annexed by Nazi Germany in the Anschluss, Carl Grunwald left for France, taking 50 of the most valuable paintings from his collection.

[2] After the war, Karl and his son-Frédéric Grunwald tried to find scattered paintings around the world.

The painting by Gustav Klimt, The Accomplishment (1905), was found in the collection of the Strasbourg Museum of Modern and Contemporary Art.

A French appeals court ruled that the museum must restitute the painting to the Grünwald heir.