 This ended up with the subjugation of San Severino by the army of Papal commander Giovanni Vitelleschi, and the subsequent imprisonment of Smeduccio Smeducci in Castel Sant'Angelo.Sanseverino became part of the Papal States by a treaty signed at Tolentino in 1445.In 1502 the town had to fight to defend itself from the invasion and devastation operated by Giovanni Maria da Varano, escaped from Cesare Borgia’s slaughter.