A Norwegian prince has been charged with three rapes amid numerous allegations of sex and violence involving several alleged victims.

Marius Borg Høiby, 28, son of Crown Princess Mette-Marit and stepson to the heir to the throne, Prince Haakon, is the focus of an extensive police investigation.

After being first arrested last August, he has been charged with a slew of offences, which he denies.

The disgraced royal now faces nine charges including rape, sexual assault and bodily harm, Oslo cops confirmed Friday.

The shocking claims include one count of rape involving intercourse, two without intercourse, four cases of sexual assault, and two of bodily harm.

Høiby was repeatedly arrested last year as the case unfolded, with preliminary charges of rape, violence and criminal damage.

Investigators say the evidence includes text messages, witness statements and findings from police searches.

The alleged royal rapist is said to have cooperated with police during questioning, CBS reports.

Høiby has no official public role and was born before his mother’s 2001 marriage into the Norwegian royal family.

He was raised alongside Princess Ingrid Alexandra, 21, and Prince Sverre Magnus, 19, but now lives separately in a house near the family estate.

His attorney, Petar Sekulic, stated: “He is taking the accusations very seriously but denies any misconduct in most instances, particularly those concerning sexual assault and violence.”

Høiby remains free pending a possible trial.

The latest charges come after a string of disturbing claims made earlier this year — including an alleged fifth rape said to have happened after his release from custody over a violent bust-up with his girlfriend.

He is also accused of raping unconscious TV star Linni Meister, 39, in 2018 at one of his wild “Skaugum Festival” parties — allegedly held in the basement of the royal estate while Crown Prince Haakon reportedly slept upstairs.

The scandal exploded after Høiby was first arrested on August 4 over an alleged assault that left then-girlfriend Rebecca Helberg Arntsen hospitalised.

But her legal team has denied they were in a relationship.