Palace of the Popes in Viterbo
…Papi) is a palace in Viterbo, region of Lazio, Italy. It is considered to be one of the most important monuments in the city, situated alongside the Duomo di Viterbo (Viterbo Cathedral). The Papal Curia was moved to Viterbo in 1257 by Alexander IV, due to the hostility of the Roman commune and constant urban violence…