On formal occasions , such as giving the Urbi et Orbi blessing , he wore the traditional 1877 Palatine tiara he had been crowned with .
John XXIII wore a number of tiaras from the papal collection .
On formal occasions , such as giving the Urbi et Orbi blessing , John XXIII wore the traditional 1877 Palatine tiara John XXIII had been crowned with .
John XXIII wore a number of tiaras from the papal collection .