On the 7th of December, 1869—Vigil of the Immaculate Conception—Pius IX., attended by an imposing suite, repaired to the Church of the Twelve Apostles, in order to inaugurate solemnly a period of nine days’ prayer in honor of the Blessed and Immaculate Mary. The following day, at an early hour, the cannon of the Castle of St. Angelo announced to the holy city the great event that had been so long looked forward to. As early as six o’clock a.m. the three naves of St. Peter’s were filled with a crowd of the faithful, and all the approaches to the Basilica were thronged with people. At nine o’clock was seen the magnificent procession of mitred abbots, bishops and archbishops, primates, patriarchs and cardinals, that preceded the _sedia gestatoria_ which bore the Pope. The sacred cortege required about an hour to traverse the hall (atrium) and the chief nave of St. Peter’s, and reach the left(9) arm of the cross which forms the immense Basilica, and which had been set apart and prepared as a vast chamber for the celebration of the council by that skilful architect, Virginius Vespignani. 1,044 Fathers were invited to be present as members of the council. 803 attended at the opening. Of these there were six archbishops who were also princes, forty-nine cardinals, eleven patriarchs, six hundred and eighty archbishops and bishops, twenty-eight abbots, and twenty-nine generals of religious orders. The entire number surpassed by one hundred and thirty-five the united numbers of all the Fathers of Nice, Constantinople and Ephesus. The day had gone by when the European sovereigns could be bidden to an Œcumenical Council. Several of their representatives, however, attended at the opening. The highest of the Roman nobility were also present. The Colonna and Orsini families enjoyed the honor of being princes attendant at the Papal throne on occasion of all the public ceremonials of the council. Others of the Roman nobility, sovereigns and princes, at the time in the city, were present. Among these were the ex-King of Naples, the Empress of Austria, the ex-Duke and Duchess of Tuscany, the ex-Duke and Duchess of Parma, together with the Doria and Borghese families. Several foreign princes, General Kanzler, commander-in-chief of the Papal forces, and General Dumont, who commanded the French battalions in garrison at Rome, likewise attended.