Can a billionaire buy the Mona Lisa?

Could it be feasible for a billionaire to acquire the iconic Mona Lisa painting? The Mona Lisa, a masterpiece by Leonardo da Vinci, is considered one of the most valuable pieces of art in the world. It's currently housed in the Louvre Museum in Paris, France, and is a symbol of French cultural heritage. Would the sheer financial power of a billionaire be enough to overcome the legal, ethical, and historical barriers that come with owning such a renowned piece of art? What challenges might they face in attempting to make such a purchase?