KOCHEL AM SEE, Germany—A new Franz Marc Museum opens this weekend in this sleepy Bavarian town south of Munich, where the pioneering German expressionist and Blaue Reiter founder spent many summers during his short lifetime, Bloomberg reports.

The new space is a major extension to a museum founded in 1986 and was funded by the Etta and Otto Stangl Foundation. Stangl, a Munich art dealer, was the executor for Marc's estate and his wife's will. Designed by the Swiss architects Diethelm & Spillmann, the new building will quadruple the space of the original, making room for 2,000 works newly given by the foundation. Included are works by Marc and his associates Paul Klee, Alexei Jawlensky, Gabriele Muenter, and August Macke, as well as the "Bruecke" artists influenced by the Blaue Reiter, such as Fernand Leger and Willi Baumeister.  

Marc (1880–1916) was killed in World War I, and his works gained in popularity in the following decades. In recent years he has also risen in the market; in February his 1910 Grazing Horses sold for $24 million at Sotheby's London.