Marius Høiby transferred to Norway's Ila high-security prison amid royal family health concerns

Marius Borg Høiby, 29, the son of Norway’s Crown Princess Mette‑Marit, was moved from the Oslo detention centre to the Ila high‑security prison in Bærum. The relocation follows the court’s decision to overturn a lower‑court order that had briefly freed him, citing the risk to public safety and the need to keep him in custody until his trial, scheduled for 15 June. Ila was chosen because the Oslo facility is slated for demolition, and the court noted the prison’s proximity to the royal estate Skaugum, allowing weekly visits and video contact.

Mette‑Marit, who suffers from severe lung fibrosis and is awaiting a donor lung, has been a focal point of media attention. Her illness was part of the arguments for Høiby’s release, but the appellate court ruled that continued detention was proportionate. The case draws public interest due to the intersection of a high‑profile royal family and the Norwegian criminal‑justice system, and it highlights the conditions of Norway’s toughest detention institution, previously home to notorious inmates such as Anders Behring Breivik.