To this day, in the annual ceremonial Sposalizio dell'albero ("marriage of the tree"), the mayor of Vetralla reaffirms the town's rights of possession on Monte Fogliano. The fief was entrusted through the centuries to various noble families associated with the Papacy, as lords of Vetralla: first the Orsini, then the Di Vico until 1435, when the last lord Giacomo di Vico was forcibly ousted by the cardinal-condottiere Giovanni Vitelleschi, confined in the fortress of Soriano, then beheaded. Vetralla then passed in rapid succession among a series of Papal nobles: to Cardinal Giovanni Borgia, to Lorenzo Cybo (1529), and to Cardinal Alessandro Farnese in 1534.