Marquis Carlo Morello and Caterina Meli Lupi di Soragna. During 1762-1765, his family lived in Palermo with Alessandro's great-uncle, Giovanni Fogliani Sforza d'Aragona , the viceroy of Sicily . From 1765 to 1773 he studied at the Clementine College in Rome. In 1773 he was accepted into the Order of Malta