During this dual control the Bavarian relations of Margaret made frequent incursions into the country, especially in the neighbourhood of the Unter-Innthal, and in 1369 succeeded in obtaining a large sum from the Habsburgs at a temporary peace made at Schärding. Ten years later the dual sovereignty came to an end, the two brothers dividing the inheritance, Leopold taking Tyrol as his share. He was killed at the Battle of Sempach on July 9th, 1386, where the Swiss gained so signal a victory under the leadership of Arnold Von Winkelried. [Sidenote: DUKE FREDERICK'S REIGN] In 1406 Frederick, Leopold's youngest son, succeeded to the sovereignty, which during his minority had been held by his elder brothers and his Uncle Albert, who had ruled the country in so lax a manner that the nobles gained a great ascendency. It was, indeed, no easy task to which Duke Frederick was called. The nickname bestowed upon him, that of "the Empty Purse," was by no means an exact description of his financial condition, save during a comparatively short period of his reign of thirty years. It was given him at the time he was an outlaw by reason of the ban of the Church, and was obliged to fly for his life and take refuge amid the mountains. His was a stormy reign. In the early portion of it he was at variance with many of the most powerful of his nobles, who resisted his attempts to curtail the power which they had acquired during his minority. After the anxieties and hardships which ensued, when the country was over-run by the Bavarians, and even the capital threatened, Frederick was destined to have still greater trouble by reason of his action at the Council of Constance, which was summoned to settle the momentous questions as to who was the rightful head of the Church, and who the ruler of the Empire. There were three claimants for each position, nominated and supported by the rival factions. The spiritual claimants were John XXIII., Benedict XIII., Gregory XII.; and the temporal Kings Sigismund of Hungary, Jost of Moravia, and Wencelaus of Bohemia. [Illustration: A WAYSIDE SHRINE, TYROL] Of the Ecclesiastical claimants John had Frederick's support, and when the former, failing to get elected by the Council, had not only to renounce his claims but flee for his life, Frederick assisted him to escape from Constance. This act of loyalty to a friend almost cost Frederick his life, as Sigismund (who of the three candidates had been elected Emperor) was his enemy, and not only succeeded in persuading the assembly to declare Frederick's throne forfeited, but also him and his chief supporters and followers outlaws, to shelter any of whom was a crime punishable with death. Frederick's evil case was made worse and his difficulties immeasurably increased by the secession to the ranks of his enemies of his brother Ernest, who had taken the Dukedom of Styria as his portion of the inheritance.