The papacy insisted that the right of the Portuguese monarchs to award the honour had been granted by a pope in the
papal bull Ad ea ex quibus issued in
Avignon on 14–15 March 1319. Although the bull itself does not explicitly grant to the Pope the right to grant membership in the order, successive popes since
John XXII have done so. For many years, the Portuguese monarchy disputed the right of the papacy to award the order, and in one famous case arrested
Giovanni Niccolò Servandoni, an Italian architect, for wearing the papal order. The position of the Crown of Portugal was that the only legitimate
fount of honour was the Crown. The official position of the
Holy See is that the Pope is the head of every Catholic religious order and may appoint any individual he deems worthy at his own discretion and without the permission of the order's
superior general. ==Senior papal order==