A portrait painted by Pablo Picasso of his “golden muse” and secret lover has sold for $139.4m (£114m) at an auction by Sotheby’s in New York. Femme à la Montre becomes the second most valuable work by the artist. Painted in 1932, the picture was described by the auctioneers Sotheby’s as the “prized jewel” of about 120 artworks owned by Emily Fisher Landau, one of the greatest art collectors of the 20th century. The sale...