This last check overwhelmed Frederick. He had now during thirty years combated the church and the Guelf party; his bodily as well as mental energy was worn out in this long contest. His life was embittered by the treason of those whom he believed his friends, by the disasters of his partisans, and by the misfortunes which had pursued him even in his own family. He saw his power in Italy decline; while the crown of Germany was disputed with his son Conrad, by competitors favoured by the church. He appeared to be at length himself disturbed by the excommunications of the pope, and the fear of that hell with which he had been so incessantly menaced. He implored anew the assistance and mediation of St. Louis of France, who was then in the isle of Cyprus. He provided magnificently for the wants of the crusade army, which this king commanded; he solicited leave to join it. He offered to engage never to return from the Holy Land, and to submit to the most humiliating expiations which the church could impose. He succeeded in inspiring St. Louis with interest and gratitude. Frederick, while waiting the effect of St. Louis’ good offices, seemed occupied solely in the affairs of his kingdom of the Two Sicilies, where he restored order, and established a prosperity not to be seen elsewhere in Europe. On the 13th of December, 1250, he was seized with a dysentery, of which he died, in the fifty-sixth year of his age, at his castle of Florentino, in the capitanate where he had fixed his residence.