Alexander IV, whose name as count of Segni and bishop of Ostia was Rinaldo, became pontiff on the death of Innocent (1254) and reigned six years and six months. Excepting some efforts to put down a grandson of Frederick II, called Conradin, and to quiet the perpetual commotions of Italy, he busied himself more in regulating the internal affairs of the church than in national concerns. The mendicant friars, Dominicans and Franciscans, are under especial obligations to him. Urban IV, before his election to the pontificate in 1261, was James, patriarch of Jerusalem, a man born of obscure parentage at Troyes. He distinguished himself more by instituting the festival of the Body of Christ than by any other achievement. He indeed formed many projects: but he executed few of them, being prevented by death, in the year 1264, after a short reign of three years. Not much longer was the reign of Clement IV, a Frenchman and bishop of Sabina, under the name of Guido Fulcodi (Guy Foulques), who was created pontiff in the year 1265. Yet he is better known on several accounts, but especially for conferring the kingdom of Naples on Charles of Anjou, brother to Louis IX, the king of France. Charles is well known to have beheaded Conradin, the only surviving grandson of Frederick II, after conquering him in battle, and this, if not by the counsel, at least with the consent of the pontiff.[105]
On the death of Clement IV[106] there were vehement contests among the cardinals, respecting the election of a new pontiff; which continued till the third year, when, at last, 1271, Teobaldo of Piacenza, archdeacon of Liège, was chosen, and assumed the name of Gregory X. He had been called from Palestine, where he had resided; and having witnessed the depressed state of the Christians in the Holy Land, nothing more engaged his thoughts than sending them succour.
COUNCIL AT LYONS
[1274-1294 A.D.]
Accordingly, as soon as he was consecrated, he appointed a council to be held at Lyons in France, and attended it in person in the month of May, 1274. The principal subjects discussed were the re-establishment of the Christian dominion in the East, and the reunion of the Greek and Latin churches. This has commonly been reckoned the fourteenth general council, and is particularly noticeable for the new regulations it established for the election of Roman pontiffs, and the celebrated provision which is still in force requiring the cardinal electors to be shut up in conclave. Neither did the pontiff, though of a milder disposition than many others, hesitate to repeat and inculcate that odious maxim of Gregory VII, that the pontiff is supreme lord of the world, and especially of the Roman Empire. For in the year 1271 he sent a menacing letter to the princes of Germany, admonishing them to elect an emperor, and without regarding the wishes or the claims of Alfonso, king of Castile; otherwise he would appoint a head of the empire himself. Accordingly, the princes assembled, and elected Rudolf I, of the house of Habsburg.
Gregory X died in the year 1276, and his three immediate successors were all chosen and died in the same year. Innocent V, previously Pietro di Tarantaisia, was a Dominican monk, and bishop of Ostia. Adrian V was a Genoese, named Ottoboni, and cardinal of St. Adrian. John XXI, previously Pedro, bishop of Tusculum, was a native of Portugal. The next pontiff, who came to the chair in 1277, reigned longer. He was Giovanni Gaetano, of the family of Ursini, a Roman, and cardinal of St. Nicholas, who assumed the title of Nicholas III. He greatly enlarged what is called the patrimony of St. Peter; and, as his actions show, had formed other great projects, which he would undoubtedly have accomplished, as he was a man of energy and enterprise, had he not prematurely died in the year 1280.