If the Vatican was granted sovereignty by the State of Italy, why, then, is the status not revocable? Surely, that which can be bestowed can be taken back just as easily.
‘…[T]he Lateran Accords, the historic agreement that Pius Xi had struck with Italy’s dictator, Mussolini, ending decades of hostility between Italy and the Roman Catholic Church. With that agreement, the separation of church and state that had marked modern Italy from its founding sixty-eight years earlier came to an end. A new era began, the Church a willing partner of Mussolini’s Fascist government.’
~ David I. Kertzer, The Pope and Mussolini: The Secret History of Pius XI and the Rise of Fascism in Europe
St. Peter’s and Their 30 Pieces of Silver: Vows of Silence in Exchange for Statehood