1823 papal conclave
The 1823 papal conclave was convoked following the death of Pope Pius VII on 20 August 1823. The conclave began on 2 September and ended 26 days later with the election of Cardinal Annibale Sermattei della Genga who became Pope Leo XII. Pius VII, who had been elected in 1800, had reigned as Pope for what was considered a very long pontificate. During his reign as Pope, the Catholic Church had faced, in the French Revolution and its aftermath, a severe attack on its power and legitimacy. Pius himself had been a prisoner of Napoleon in France  for six years. Description. During Pius VII's papacy, the cardinals had tended to divide into two groups, the "zelanti" and the '. The "zelanti" were more radically reactionary than the ' and wanted a highly centralised Church and vehement opposition to the secularising reforms that had resulted in France. The "", though anti-liberal, were much more moderate and favoured a conciliatory approach to dealing with the problems that new ideologies and the incipient Industrial Revolution were creating. The leader of this faction was Pius VII's Cardinal Secretary of State, Ercole Consalvi, but the "zelanti" wanted a much less moderate pontiff  and they set fervently to this task from the time of Pius VII's death. The length of Pius VII's papacy had a significant influence because of the forty-nine electors who participated in the conclave, only Giulio Maria della Somaglia and Fabrizio Dionigio Ruffo were already cardinals when Pius VII was elected in 1800. Forty-seven of the forty-nine electors had had no experience electing a pope. A number of cardinals were thought at the beginning of the conclave to be possible successors to Pius VII. Antonio Gabriele Severoli was at first seen as the most likely  papabile, but the veto of Francis I, Emperor of Austria ruled him out when he looked to have a reasonable chance. Francesco Saverio Castiglioni then emerged as the most likely candidate. The deceased pope Pius VII had in fact seemingly endorsed Castiglioni by having referred to the latter as Pius VIII, and indeed the candidate who was eventually elected predicted during the conclave that Castiglioni would someday reign under that name (as he did, succeeding the elected Leo in 1829). Castiglioni lost support in the 1823 conclave when the "zelanti" Cardinals came to realize that he was quite close to  Consalvi. Following the decline of Castigioni's support in this conclave, the experienced Cardinal della Somaglia then had a turn as a possible candidate, but for some the mere fact that he had signed his letters "Citizen Somaglia" during the occupation of the Papal States by Napoleon I of France ruled him out. It was only then that the eventual winner, Vicar of Rome Annibale della Genga, who was being promoted by the "zelanti", began to gather support. Whilst his tall, ascetic look and reactionary reputation was not an attraction for the ', the fact that he was seemingly at death 's door seemed an attraction for those cardinals by now desperate for a resolution of the conclave. As a result, della Genga was elected on 28 September and took the regnal name Leo XII. Leo XII was crowned as Pope on 5 October 1823.