The son of Norway’s Crown Princess has been arrested on a fresh set of criminal charges.
Marius Borg Høiby is the son of Norwegian Crown Princess Mette-Marit and the stepson of Norway’s future king, Crown Prince Haakon.
Norwegian police confirmed Høiby had been detained over new allegations including assault and making threats with a knife following an incident on Sunday.
Høiby was already set to face trial this week after he was charged with 38 offences, including rape, abuse and violent behaviour, last year.
Høiby
Høiby was born before his mother married the Crown Prince and became Crown Princess, meaning he does not hold a royal title or serve in a public role.
His half-sister, Princess Ingrid Alexandra, is second in line of succession for the Norwegian throne, after her father.
In August 2025, Norwegian State Attorney Sturla Henriksbo confirmed Høiby had been charged with 32 offences, including four counts of rape. The number of charges was later increased to 38. Until this week, he had remained free pending trial.
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New charges
Høiby’s defence lawyer Petar Sekulic told The Associated Press his client had been arrested on Sunday following what Sekulic described as an “incident”.
The 29-year-old is accused of assault, making threats with a knife, and violating a restraining order.
On Monday (local time), a Norwegian court granted a police request to keep Høiby in custody for up to four weeks due to a risk of reoffending.
What’s next?
Høiby’s legal team said they would appeal his detention as soon as he can provide statements to police. This is not expected to occur until after the first week of trial proceedings.
Following his initial arrest last year, the Royal Family told Norwegian media outlet NRK: “It is up to the courts to hear this case and reach a decision. We have nothing to add beyond this.”
The new charges come days after Mette-Marit’s email correspondence with convicted sex offender Jeffrey Epstein was made public.
