Marius Borg Høiby appeals to Supreme Court over electronic monitoring request

Marius Borg Høiby, the son of Crown Princess Mette-Marit of Norway, will appeal to the Supreme Court after lower courts rejected his request to serve the remainder of his pre-trial detention under electronic monitoring at the royal estate Skaugum, Dagbladet reports.

The 29-year-old’s defence lawyer, René Ibsen, confirmed to news agency NTB that the appeal to the Supreme Court’s appeals committee was submitted on Friday afternoon. “The appeal to the Supreme Court’s appeals committee has been submitted this afternoon,” Ibsen wrote in a text message.

Høiby had previously been denied the request by both Oslo District Court and Borgarting Court of Appeal. On 6 May, the district court rejected his application to leave Oslo Prison and complete his pre-trial detention—set to last until the criminal verdict on 15 June—at Skaugum with an electronic ankle monitor. The court of appeal later unanimously upheld the decision, citing a high risk of reoffending.

In his arguments, Høiby claimed that imprisonment was highly stressful, that he had limited social contact, and that poor air quality in the old prison made visits difficult for his mother, who is battling illness. However, courts emphasised that he had repeatedly violated a restraining order against his former girlfriend, known in media as the “Frogner woman,” even after being warned of the consequences. Some breaches occurred after charges were filed and during the trial.

Høiby faces 40 criminal charges, including the rape of four women while they slept and domestic violence against his ex-girlfriend, influencer Nora Haukland. He denies the most serious allegations. Prosecutors have requested a sentence of seven years and seven months in prison.

He was remanded in custody on 2 February, the day before his trial began in Oslo District Court, following his arrest for assault, knife threats, and violating the restraining order. The trial concluded on 19 March.