Neither Henry nor Calixtus long survived the Concordat of Worms. Calixtus died at Rome in December 1124, having previously held a council in the Lateran, where the Concordat was confirmed, and a vast series of canons drawn up to facilitate the establishment of the new order of things. He strove also to restore peace and prosperity in Rome, which had long lain desolate and ruinous as the result of constant tumults. Short as was his reign, it could yet be said of him that in his days there was such peace in Rome that neither citizen nor sojourner had need to carry arms for his protection. He had not only made the Papacy dominate the western world; it even ruled, if but for a time, the turbulent city that so often rejected and maltreated the priest whom all the rest of the world revered. [Sidenote: Last failures and death of Henry V., 1125.] Henry V.’s end was less happy. The war had taught him that the real ruler of Germany was not himself but the feudal aristocracy. He planned, in conjunction with his English father-in-law, an aggressive attack on Louis VI. of France, but he utterly failed to persuade his barons to abandon their domestic feuds for foreign warfare. He fought one purposeless campaign as the ally of England. In May 1125 he died on his way back, at Utrecht, saddened, disappointed, and worn out before his time. He is one of the most unattractive of mediæval Emperors. Cold-blooded, greedy, treacherous, violent, ambitious, and despotic, he reaped no reward from his treasons, and failed in every great enterprise he undertook. Yet despite his constant misfortunes, the strong, hard character of the last Salian Emperor did something to keep up the waning fortunes of the Empire, and the unity of the German kingdom. CHAPTER VII THE EASTERN EMPIRE AND THE SELJUKIAN TURKS (912–1095)[9] The Macedonian Dynasty—Constantine VII. and his Co-regents—Condition of the Eastern Empire in the Tenth Century—The Conversion of the Slavs—Break-up of the Mohammedan East—Period of Conquest and Glory—Nicephorus Phocas and John Zimisces—The Russian War—Basil II. and the Bulgarian War—Decline of the Macedonian House—Zoe and Theodora—Cærularius and the Schism of East and West—Rise of the Seljukians—Contrast of Turks and Arabs—Decline of the Eastern Empire—Manzikert—Alexius Comnenus and his House—The last phase of the Eastern Empire.