It was inthisTuscantown that Renaissance town-planning concepts were first put into practiceafterPope PiusIIdecided, in 1459, to transform the look ofhisbirthplace.
There has also been persistent speculation by historians that during World War II, PopePius XII drew up a document stating that if he were to be kidnapped by the Nazis he was to be considered to have resigned, and a successor should be chosen.