The son of Norway’s crown princess Mette-Marit, who is already facing charges of violence as part of an ongoing investigation, has been arrested on suspicion of rape. Marius Borg Høiby, 27, is the stepson of the heir to the Norwegian throne, Crown Prince Haakon, but does not a have a royal title or official duties. On Tuesday, Norwegian police said Mr Høiby had been charged with sexual intercourse with “someone