There now ensues a break in the long period of disunion which had prevailed in China, and for a time the supreme authority of the emperor recovered the general respect and vigor which by right belonged to it. The deposer of the Souis was Liyuen, who some years before had been given the title of Prince of Tang. In the year A.D. 617 he proclaimed himself emperor under the style of Kaotsou, and he began his reign in an auspicious manner by proclaiming an amnesty and by stating his "desire to found his empire only on justice and humanity." While he devoted his attention to the reorganization of the administration at Singan, which he chose for his capital, his second son, Lichimin, was intrusted with the command of the army in the field, to which was assigned the task of subjecting all the provinces. Lichimin proved himself a great commander, and his success was both rapid and unqualified. He was equally victorious over Chinese rebels and foreign enemies. His energy and skill were not more conspicuous than his courage. At the head of his chosen regiment of cuirassiers, carrying black tiger skins, he was to be found in the front of every battle, and victory was due as often to his personal intrepidity as to his tactical skill. Within a few years the task of Lichimin was brought to a glorious completion, and on his return to Singan he was able to assure his father that the empire was pacified in a sense that had not been true for many centuries. His entry into Singan at the head of his victorious troops reminds the reader of a Roman triumph. Surrounded by his chosen bodyguard, and followed by forty thousand cavalry, Lichimin, wearing a breastplate of gold and accompanied by the most important of his captives, rode through the streets to make public offering of thanks for victory achieved, at the Temple of his ancestors. His success was enhanced by his moderation, for he granted his prisoners their lives, and his reputation was not dimmed by any acts of cruelty or bloodshed.