Marius Borg Høiby, 29, pleads not guilty to most serious charges in trial that has embarrassed the royal family

Marius Borg Høiby, the crown prince's blond stepson, is accused of 38 charges in a case that has attracted global interest.

Marius Borg Høiby arrested on suspicion of assault, making threats with knife and violating restraining order, police say