He married Mette-Marit Tjessem Høiby on August 25, 2001, who is since then known as Crown Princess Mette-Marit.
... multiplex congenita whistling face[?] Arthrogryposis multiplex congenita, distal type 1[?] Arthrogryposis multiplex congenita, distal type 2[?] Arthrogryposis ...