In the beginning of the war between Philip of Suabia and Otto IV, it seemed that Philip would easily be the victor. But things began to go against him and toward the end of 1202, he secretly sent messengers to the pope to see what terms he could secure. Innocent was at least willing to negotiate and sent Martin to him to discuss the situation. In the presence of Martin, Philip drew up the concessions which he was willing to make. These concessions were not sufficient for Innocent, and, besides, Otto IV began to have greater success in the field against Philip. So Innocent repudiated what Martin had done and gave his support to Otto again. But the success of Otto was brief. In 1204-5, Philip began to prevail over Otto, who soon found himself without support. Then Innocent, deserting Otto for his more successful rival, renewed the negotiations with Philip. In 1208 they agreed to a treaty, but its terms were not made public, and the negotiations were not entirely completed when Philip was murdered. I, Philip, king of the Romans, Augustus, etc. Before Martin, Camaldolensian prior, and brother Otto, monk of Salem, came to me to negotiate about making peace with the church, I had already vowed to God and to his saints to go across the sea to liberate the land of promise from the cruelty of the Gentiles [Turks]; and again after they came and told me of the peace negotiations and of the concessions which the pope was willing to make, I vowed and promised to God and to his saints and to the said prior and brother, representatives of the pope, that, at a suitable time, in good faith and without fraud, I would go on a crusade, to the support of the church and of the empire, and do all I could to liberate the said land. The following persons were witnesses of my vow: Diethelm, bishop of Constance, etc. Besides, I promised that I would do all the following things: I will restore to all churches all the possessions which my predecessors, or I, have unjustly seized or held, and I will no longer disturb them in their possessions. I will cease from all the abuses which my predecessors have practised toward the church, as for example, when a bishop or abbot dies, I will not seize his possessions [_spolia_]. I will permit the elections of bishops and other prelates to take place in a canonical way, and I surrender control in spiritual matters to the pope. With the help of the pope I will endeavor, as far as my imperial office will permit, to subject all independent monasteries to some one of the regular orders, such as the Cistercian, Camaldolensian, or Premonstratensian. And I will try to compel the clergy as well as the monks to lead a decorous life, such as is becoming to their profession. As far as I can, I will compel advocates and patrons of churches to cease from oppressing the churches with exactions, such as _angariæ_ and _parangariæ_.{75} If God shall subject the empire of the Greeks to me or to my brother-in-law, I will