own salvation were at stake, it was useless or dangerous to excommunicate his king and to lay his country under interdict. For want of lay support the Church failed to make good such important claims as those of immunity from national taxation and of jurisdiction in cases of commercial contract. More striking still, she was prevented from establishing the Inquisition in states where that tribunal would have found no lack of work. Still, in spite of clerical divisions and lay conservatism, "the freedom of the Church" was an ideal which commanded universal homage; and it was necessary for the most obstinate opponent of ecclesiastical privilege to make it clear that his policy involved no real attack upon this freedom. Otherwise, defeat was certain. Thrice in two hundred years the cry for freedom was raised against the Holy Roman Empire; and three prolonged conflicts ended in the discomfiture of the most resolute and resourceful statesmen who ever held that office-Henry IV (1056-1105), Henry V (1106-1125), Frederic Barbarossa (1152-1190), and Frederic II (1212-1250). In the first of these great conflicts the question at issue was the reformation of the national clergy and their emancipation from secular authority. Henry IV paid for his assertion of prerogative and custom, both by the ignominious though illusory surrender at Canossa (1077), and by the unparalleled humiliations of his latter days, when he was compelled, as the prisoner of his own son, not only to abdicate but also to sign a confession of infamous offences against religion and morality. Henry V, reviving the plans of the father whom he had betrayed and entrapped, was reduced through very weariness to conclude the Concordat of worms (1122)--a renunciation which only ended in something less than absolute defeat for the Empire, because the imperial concessions were interpreted with more regard to the letter than the spirit. In the second struggle the immediate issue was the freedom of papal elections, the ultimate question whether Pope or Emperor should shape the Church's policy; and Frederic Barbarossa was compelled, after a schism of seventeen years' duration to surrender claims which dated from the time of Charles the Great, and to make peace with Alexander III, whom he had sworn that he would never recognise (Treaty of Anagni, 1176). Henry VI, the son of Barbarossa, when he joined the kingdom of Sicily to the Empire through his marriage with Constance, the heiress of the Norman throne, sowed the seed of a new conflict, and bequeathed to Frederic II the perilous ideal of an Italy united under a Hohenstauffen despotism. Ecclesiastical freedom now became a euphemism for the preservation of the temporal power, and for the project of a federal Italy, owning allegiance to a papal suzerain. Frederic II, who came nearer to success in a more far-reaching policy than any of his predecessors, was worn out by the steady alternation of successes with