London National Gallery sued over 'stolen' Matisse portrait

The National Gallery in London is being sued by heirs of the subject of a 1908 Matisse portrait, BBC  reports.

According to the source, three grandchildren of Margarete Moll, known as Greta, claim the gallery is unlawfully displaying the painting, and say it was stolen after World War Two.

They began proceedings in a federal court in New York on Wednesday, claiming the Portrait of Greta Moll is rightfully theirs. The National Gallery said it had received the legal documents.