The stepson of Norway’s Crown Prince Haakon has been jailed for two rapes – including one in the basement of his family’s home.

Marius Borg Hoiby, who joined the royal family when his mother Mette-Marit married Haakon in 2001, was found guilty in an Oslo court of two counts of rape, as well as domestic violence and other crimes. He is outside the succession line.

He was also convicted of assault and abuse of women he was in a relationship with. One of the sex attacks was carried out in the crown prince’s home.

The 29-year-old had been charged with sexually assaulting four women who were asleep or unable to resist between 2018 and 2024. He was acquitted on two of the rape charges.

Hoiby faced a total of 40 criminal charges, including lesser offences like assault, drug-related crimes and violations of a restraining order.

He pleaded not guilty to the most severe accusations against him, including those of rape and domestic violence, while admitting he was partially guilty – a plea allowed under Norwegian law – of aggravated assault and reckless behaviour.

Hoiby was sentenced to four years in prison. Prosecutors had sought seven years and seven months in jail. He can appeal the verdict.

Hoiby’s verdict comes as his mother is suffering from serious medical conditions. A week ago, the royal family announced that Mette-Marit, 52, was placed on a lung transplant list.

She was diagnosed with pulmonary fibrosis, a progressive disease that damages and scars lung tissue, in 2018. It can cause serious breathing problems, and there is no known cure.