[ORDER OF MALTA]. Bulla sanctissimi domini nostri domini Gregorii papae XIII confirmationis privilegiorum religionis sancti Ioannis Hierosolymitani. Rome: Blado, 1591. Extremely rare papal bull (no copies recorded outside of Italy) confirming the privileges of the Knights of Saint John, of Jerusalem and of Malta. Folio (327 x 230mm). 4 leaves, title within woodcut border, four in-text woodcuts depicting Saint John, the arms of Pope Gregory XIII, and the coat of arms of the Knights of Saint John, Jerusalem, and Malta ; shown in white on a black shield with two swords, and repeated in larger format at the end.n(1)