History’s most expensive artwork, purchased by Saudi Crown Prince Mohammed bin Salman in 2017 for $450 million, was supposed to be part of the Louvre’s blockbuster Leonardo da Vinci exhibition in 2019 and then go on long-term loan to the new Louvre Abu Dhabi. But Salvator Mundi hasn’t been seen in public since its auction (and is rumored to be on a royal yacht). Why? It seems there was a battle of wills between His Royal Highness and the Louvre’s specialist curators over certifying the painting as Leonardo’s work. – Artnet