Marius Borg Høiby has been granted a retrial by the Court of Appeal, just days after his public appearance at King Harald's funeral.
Queen Mette-Marit's 29-year-old son was sentenced to four years in prison for two rapes, abuse in close relationships, and violence back in June by a judge at Oslo District Court.
He appealed the most serious convictions against him, including rape and domestic abuse. King Haakon's stepson has consistently denied wrongdoing.
Now, the Court of Appeal has accepted his entire appeal, meaning he will get his case retried, with a full review of both rape cases and the domestic violence charge.
© WireImageHis defense attorney Petar Sekulic told NRK: "As expected, the appeal has been accepted in full.
"There is nothing about this case that is gratifying. But still, he is at least satisfied that the Court of Appeal has heard him here, and that they are allowing the case to be retried, as he has wished."
State attorney Sturla Henriksbø said: "A new hearing of the case will then be conducted based on approximately the same evidence that was presented to the district court for these matters, and which formed the basis for the district court's conviction."
The case is expected to go to trial next year.
Marius's appearance at King Harald's funeral
Following Marius's conviction in June, the Oslo District Court ruled that he could remain at home in Skaugum on house arrest with ankle chains.
However, he received permission to visit his stepfather, King Harald, in hospital, as well as the bier ceremony and official state funeral at Oslo Cathedral on Wednesday.
He travelled from the Skaugum estate to the Royal Palace in the same car as his siblings, Crown Princess Ingrid Alexandra and Prince Sverre Magnus.
© WireImageInstead of joining the procession, he went straight to the cathedral and was seated next to Princess Martha Louise's daughters, Leah Isadora Behn, Maud Angelica Behn, and Emma Tallulah Behn.
He was seated in the second row by the altar, in the section reserved for family, alongside the rest of King Harald's grandchildren who do not hold official roles.
The area included royals who are not heads of state, such as Queen Anne‑Marie of Greece and her children, and Princesses Beatrix and Amalia of the Netherlands.
Why Marius has been allowed at the funeral events
Marius was permitted a prominent role at King Harald's funeral events despite his conviction, which took some by surprise.
He is Mette-Marit's son from a previous relationship, but was welcomed into the Norwegian royal family from a young age, though he has never held an official role.
He was just four when his mother married the then-Crown Prince of Norway.
© Alamy Stock PhotoSe og Hør royal reporter Caroline Vagle previously told HELLO! that Harald became "an important grandfather figure" to him.
As to whether it was the King's wish to have Marius included in the funeral proceedings, Caroline could not say for certain.
But she added: "We know that King Harald was a very generous and warm person, who believed in looking after everyone – including those who find themselves on the outside of society."
