Marius Borg Høiby, the 29-year-old son of Norway’s Crown Princess Mette-Marit, has been found guilty of two counts of rape and sentenced to four years in prison.

The three judges in courtroom 250 at Oslo District Court cleared him of two other counts of rape, but found him guilty of many of the other offences of which he had been accused.

Høiby was not in court for the verdict for unspecified health reasons, but joined the session via video link.

Prosecutors had called for Høiby to be given seven years and seven months in prison. His defence lawyers had called for a lesser term of 18 months and can appeal against the verdict.