The American collectors Jeffrey and Carol Horvitz have, over the past four decades, amassed one of the most important private collections of French Old Masters in the United States.

The case of the great German Expressionist painter Emil Nolde seems even more complicated. In the 2010s, archival evidence ...

An expansive collection of watercolors, prints, and paintings, the Emil Nolde show at the MFA revealed the works of one of Germany’s most talented expressionists.

It includes pictures by Vasily Kandinsky, Emil Nolde, Lyonel Feininger, Paul Klee, Franz Marc, Ernst Ludwig Kirchner, Oskar Kokoschka and August Macke. The majority of the works, including most of ...