Oslo district court sentenced Marius Borg Høiby to four years in prison on 15 June 2026, convicting him on two counts of rape and one count of abuse in a close relationship, according to NRK.

Høiby, the son of Crown Princess Mette-Marit of Norway, faced four rape charges in total. The court acquitted him on the remaining two counts. The domestic abuse conviction related to his ex-partner Nora Haukland.

The case has carried particular public weight in Norway given Høiby's position within the royal family's immediate orbit, though he holds no formal royal status himself. Crown Princess Mette-Marit has long navigated a degree of public scrutiny over her son from a prior relationship — scrutiny that the criminal proceedings have now sharpened considerably. The Norwegian monarchy, a constitutional institution with significant symbolic capital, will face sustained questions about how the royal household addresses the verdict publicly and what distance, if any, it formally signals.

Four years is a substantial custodial term under Norwegian sentencing norms, where the penal system prioritises rehabilitation and where sentences of this length for sexual violence, while not exceptional, are at the upper register of what courts routinely hand down for non-aggravated rape convictions. The split verdict — convicted on two rape counts, acquitted on two — will be examined closely by legal commentators for what it reveals about the evidentiary threshold the prosecution met and where it fell short. Norwegian criminal procedure requires proof beyond reasonable doubt, and a 50 percent acquittal rate on a discrete charge category within a single trial often reflects contested credibility findings rather than categorical failures of evidence.

Whether Høiby or the prosecution will appeal has not been confirmed as of the time of publication. Under Norwegian law, either party retains the right to contest the verdict before the court of appeal, which would subject the findings of fact to fresh judicial scrutiny. Given the public profile of the case, an appeal either way would extend a legal process that has already drawn sustained national and international attention.