Marius Borg Høiby, 27, Mette-Marit's son from before her marriage to Crown Prince Haakon, was arrested in August 2024 after authorities alleged he "attacked" a 20-year-old woman "psychologically and physically," according to a report from Norwegian outlet Se og Hør.

Marius Borg Hoiby (L) and Norwegian Crown Princess Mette-Marit (R) attend a June 2022 government event in Oslo, Norway. Norwegian police arrested Hoiby at the end of last year on suspicion of sexually assaulting a woman and other charges. File Photo by Lise Aserud/EPA

In addition to four counts of rape, 28-year-old Marius Borg Høiby is charged with filming women illegally and domestic violence against a former partner.