sentences:  It was announced on 3 January 2006, that Fred Olsen was to sell almost his entire collection of Edvard Munch paintings; the auction through Sotheby's London fetched almost £17m.Olsen has previously been involved in a legal dispute with his younger brother, Petter Olsen, concerning the important Munch collection brought together by their father Thomas Fredrik Olsen; according to the will of their mother Henriette Olsen, they were to be left to the younger son.Fred Olsen contested the will but lost the case in the Oslo District Court in 2001.