For three years the unhappy Frederic remained a prisoner of Louis of Bavaria, held in close confinement in the castle at Trausnitz. At the end of that time the emperor, alarmed at the efforts which the friends of Frederic were making to combine several Powers to take up arms for his relief, visited his prisoner, and in a personal interview proposed terms of reconciliation. The terms, under the circumstances, were considered generous, but a proud spirit needed the discipline of three years' imprisonment before it could yield to such demands. It was the 13th of March, 1325, when this singular interview between Louis the emperor, and Frederic his captive, took place at Trausnitz. Frederic promised upon oath that in exchange for his freedom he would renounce all claim to the imperial throne; restore all the districts and castles he had wrested from the empire; give up all the documents relative to his election as emperor; join with all his family influence to support Louis against any and every adversary, and give his daughter in marriage to Stephen the son of Louis. He also promised that in case he should fail in the fulfillment of any one of these stipulations, he would return to his captivity. Frederic fully intended a faithful compliance with these requisitions. But no sooner was he liberated than his fiery brother Leopold, who presided over the Swiss estates, and who was a man of great capacity and military energy, refused peremptorily to fulfill the articles which related to him, and made vigorous preparations to urge the war which he had already, with many allies, commenced against the Emperor Louis. The pope also, who had become inimical to Louis, declared that Frederic was absolved from the agreement at Trausnitz, as it was extorted by force, and, with all the authority of the head of the Church, exhorted Frederic to reassert his claim to the imperial crown. Amidst such scenes of fraud and violence, it is refreshing to record an act of real honor. Frederic, notwithstanding the entreaties of the pope and the remonstrances of his friends, declared that, be the consequences what they might, he never would violate his pledge; and finding that he could not fulfill the articles of the agreement, he returned to Bavaria and surrendered himself a prisoner to the emperor. It is seldom that history has the privilege of recording so noble an act. Louis of Bavaria fortunately had a soul capable of appreciating the magnanimity of his captive. He received him with courtesy and with almost fraternal kindness. In the words of a contemporary historian, "They ate at the same table and slept in the same bed;" and, most extraordinary of all, when Louis was subsequently called to a distant part of his dominions to quell an insurrection, he intrusted the government of Bavaria, during his absence, to Frederic.