Tombeau d'Adrien; Engraved by Pietro Fontana (1762-1837); from 'Recueil des vues au bister dessinees et lavees par Callimachus, Souvenirs d'antiquites et curiosites de Rome et des environs, Deblayements et reparations du Pape Pie VII'; Pope Pius VII (1742-1823) Papacy (1800-23) Count Barnaba Niccolo Maria Luigi Chiaramonti; The Castel Sant'Angelo was begun by Hadrian c.130 as a mausoleum for himself and his family; Completed 139 after his death; In the Middle Ages it became the citadel of Rome; The Ponte Sant'Angelo or Pons Aelius was built by Hadrian in 134 and transformed by Gian Lorenzo Bernini in 1688; St. Peter's basilica;