 The primacy of the Supreme Pontiff required that he have in his service officials to write and transmit his answers to the numerous petitions for favours and consultations addressed to him.Throughout its duration the office was reformed numerous times.The Apostolic constitution "Etsi ad Singula" of Pope Clement VII of 5 July 1532 provided the cardinalatial title of the "Basilica di San Lorenzo in Damaso" to the Chancellor.