frontier and commissioned Vincenzo Maculani to fortify the Castel Sant'Angelo in Rome. Urban VIII also established an arsenal in the Vatican, an arms factory at Tivoli and fortified the harbour of Civitavecchia. For the purposes of making cannon and the baldacchino in St Peters, massive bronze girders were pillaged from the portico of the Pantheon leading to the well known lampoon: quod non fecerunt barbari, fecerunt Barberini, "what the barbarians did not do, the Barberini did." Patron of the arts Urban VIII expended vast sums bringing polymaths like Athanasius Kircher to Rome and funding various substantial works by the sculptor and architect Bernini, from whom he had already commissioned Boy with a Dragon around 1617 and who was particularly favored during Urban VIII's reign. As well as several portrait busts of Urban, Urban commissioned Bernini to work on the family palace in Rome, the Palazzo Barberini, the College of the Propaganda Fide, the Fontana del Tritone in the Piazza Barberini, the baldacchino and cathedra in St Peter's Basilica and other prominent structures in the city. Numerous members of Barberini's family also had their likeness caught in stone by Bernini, such as his brothers Carlo and Antonio. Urban also had rebuilt the Church of Santa Bibiana and the Church of San Sebastiano al Palatino on the Palatine Hill. The Barberini patronised painters such as Nicolas Poussin and Claude Lorrain. One of the most eulogistic of these artistic works in its celebration of his reign, is the huge Allegory of Divine Providence and Barberini Power painted by Pietro da Cortona on the ceiling of the large salon of the Palazzo Barberini. Another such acquisition, in a vast collection, was the purchase of the 'Barberini vase'. This was allegedly found at the mausoleum of the Roman Emperor Severus Alexander and his family at Monte Del Grano. The discovery of the vase is described by Pietro Santi Bartoli and referenced on page 28 of a book on The Portland Vase. Pietro Bartoli indicates that the vase contained the ashes of the Roman Emperor. However, this together with the interpretations of the scenes depicted on it are the source of countless theories and disputed 'facts'. The vase remained in the Barberini family collection for some 150 years before passing through the hands of Sir William Hamilton Ambassador to the Royal Court in Naples. It was later sold to the Duke and Duchess of Portland, and