The rape trial of Marius Borg Høiby, the son of Norway’s Crown Princess Mette-Marit, has opened in Oslo, marking one of the most high-profile criminal cases to confront the Norwegian monarchy in recent years.
Høiby, who is 27, appeared before the Oslo District Court as prosecutors opened a case involving 38 criminal charges, including four counts of rape. The allegations stem from incidents said to have occurred over an extended period, making the case one of the largest sexual assault trials in Norway in recent times.
The trial, scheduled to last seven weeks, is being conducted under tight restrictions. The court has barred photography of the defendant and prohibited the disclosure of identifying details of the four alleged victims, in line with Norwegian law on sexual offence cases.
Høiby was first arrested about a year and a half ago following a violent incident at a woman’s apartment. He is currently in custody after a more recent arrest on suspicion of assault, issuing threats with a knife, and breaching a restraining order. His legal team has indicated plans to appeal the court’s decision to remand him in custody.
Prosecutors told the court that the charges against Høiby go beyond rape allegations and include serious sexual offences, assault, coercion, violations of restraining orders, and possession of illegal drugs. If convicted on the most serious counts, he could face a prison sentence of at least ten years under Norwegian law.
Høiby has denied most of the allegations relating to sexual abuse and violence but has admitted to some lesser offences, including physical abuse and damage to property.
Although he does not hold an official royal title and is not formally part of the Norwegian royal family, Høiby’s close relationship to the Crown Princess has thrust the monarchy into intense public and international scrutiny.
The trial has also coincided with renewed controversy surrounding Crown Princess Mette-Marit herself, following revelations that she had extensive email contact with the late convicted sex offender Jeffrey Epstein. The disclosure has sparked widespread criticism in Norway and beyond.
The Crown Princess has acknowledged what she described as “poor judgement” in maintaining contact with Epstein, an admission that has led several organisations to distance themselves from her charitable and public engagements. The controversy has further fuelled public debate about transparency and accountability within the royal household.
Norway’s Prime Minister, Jonas Gahr Støre, has publicly called for openness regarding the nature of the Crown Princess’s past communications, reflecting growing political unease over the matter. Analysts say the Epstein email revelations may cast a long shadow over her public life.
The royal family is not expected to attend the court proceedings. King Harald V and Queen Sonja are reportedly away on official engagements linked to the Winter Olympics, a move that has drawn mixed reactions from the Norwegian public.
Public opinion in Norway has been marked by disappointment and shock, with commentators noting that the combined weight of the criminal trial and the Epstein email fallout represents a severe test for the monarchy’s moral authority.
Despite the unfolding scandal, opinion polls suggest that Norway’s constitutional monarchy remains broadly popular. However, political figures and civil society groups argue that the situation underscores the need for honesty, transparency, and clear boundaries between private conduct and public responsibility within the royal institution.
As proceedings continue in Oslo, both the legal fate of Marius Borg Høiby and the wider implications for Norway’s royal family are expected to remain under close national and international watch.

