Norway's Crown Princess Mette-Marit, 52, has been placed on a waiting list for a lung transplant after doctors warned her condition has become "dangerous," the royal household announced Friday. The princess was diagnosed in 2018 with a rare form of pulmonary fibrosis — a progressive disease that causes scarring and stiffening of the lungs — and specialists at Oslo University Hospital report a sharp decline in lung function over the past three months alone. She has suspended all official duties while awaiting a suitable donor, and her son from a previous relationship, Marius Borg Høiby, who is currently in custody facing rape charges he largely denies, has reportedly requested release citing his mother's serious illness.