Forbes reports:

Grocery retail billionaire Stein Erik Hagen is now opening up his art collection, believed to be the largest private collection in Norway, to the public. The Norwegian National Museum of Art, Architecture and Design (Nasjonalmuseet) has been granted free access to roam Hagen’s collection, a 2000-piece compilation of Nordic and Northern European fine art from the 19th and 20th century, valued at 1 billion Norwegian Krone ($120 million).

Surrealist, concretist and expressive movements within Nordic art, including works by modern Scandinavian masters like Edvard Munch, Gösta Adrian-Nilsson and Asger Jorn, form the core of Hagen's collection. The National Museum will supplement its collection with selections from the Hagen trove, which also includes over 200 prints by the American photographer Robert Mapplethorpe.