Marius Borg Hoiby has no royal title or duties, but as the stepson of the heir to the throne, his arrest has cast a cloud over Norway’s popular royal family.

The son of Norwegian Crown Princess Mette-Marit was arrested for allegedly raping a woman in Oslo — his third arrest in a matter of months, according to police.

Norway's royal family found itself embroiled in an intensifying scandal Tuesday after the son of the country's crown princess was arrested on suspicion of rape.Marius Borg Hoiby, 27, was arrested Monday on a preliminary charge of having "sexual intercourse with someone who is unconscious or for other reasons is unable to resist the act,