... ; both were members of the Gregorian faction opposed to Frederick II. Celestine IV died on Sunday, 10 November 1241, just 17 days after his election, even before he had been
enthroned. It is possible that the cause of death was
dysentery, contracted in the Septasolium (Saepta Solis). It is speculated that had Celestine IV lived longer he "would in all likelihood have proven friendly to the emperor". Pope Celestine was buried on the day after his death, according to the custom. But, even before the funeral, certain cardinals fled the city, and headed for Anagni, the home of Cardinal Rinaldo dei Conti di Segni. It is said (by Matthew of Paris) that only six or seven cardinals were left in the city. Cardinal Colonna, however, was seized by the Roman populace, who supported the Orsini, and imprisoned due to his association with King Frederick. When confronted by a group of begging friars bearing a message from the
Archbishop of York and
Bishop of Lincoln, Frederick II reportedly said: "Who is hindering the welfare of the Church? Not I; but the stubborn pride and greediness of Romans. Who can wonder if I withstand the English and Roman Churches, which excommunicate me [as Oddone had done from England], defame me, and are always pouring forth money to do me wrong?" Soon after the conclave, the hostilities between the
Guelphs and Ghibellines resumed around the
Italian peninsula, on both land and sea. Although Frederick II was now free to crush the
Lombards without a pope to oppose him, he soon diverted much of his cavalry and infantry north of the Alps where the
Tartars had begun to seriously threaten his lands. Thus began the longest
sede vacante in the
history of the Roman Catholic Church since the period between
Pope Agatho and
Pope Leo II (681-682). It took a year and a half before the cardinals were successful in reconvening in
Anagni (Frederick II was in possession of Rome) and electing a successor to Celestine IV, due in no small part to Frederick II's continuing to keep da Pecorara and Oddone as hostages: choosing Cardinal Fieschi as
Pope Innocent IV in 1243. Innocent IV breathed new life into the conflict against Frederick II, and after the emperor's death in 1250, excommunicated his son and heir,
Conrad IV of Germany. ==Problematical Accounts==