do that. Such as his promise with Pope Innocent III, that he would not add Sicily to the Empire. The conflict between the two powers of Italy and Germany during the time of Frederick II and Innocent III influenced the crusades. Frederick II himself had been forced to accept the crusade and participate in it by Pope Innocent III. However German conditions didnt call for the Emperor to be away. In April of 1220 in Frankfort the German diet passed regulations concerning the Roman expedition and the Crusade. With this Fredrick II had to name his son Henry III king while Frederick was on the crusade. Englebert, the powerful arch-bishop was named vice-regent Fredrick set out for Italy. He was crowned Emperor at Rome on November 22, 1220, and renewed his vow to the cross, promising to begin the campaign the following year. Fredrick II was a political genius in dealing with the pope. In a severe edict against heretics it looked as if Frederick II was on the same page as the pope. Even when he didnt keep his promise to begin the crusades next year his relationship with the pope was unaltered. This peace loving pope deserved chief-credit, though Frederick also strove to avoid a breach with his loyal policy between towards the Holy See. Both Pope and emperor, however, saw that this peace was maintained only by skilful diplomacy, and that it was constantly imperiled by their conflicting interests. Fredrick wanted the German society to be like the Sicilian society. Where Norman, Saxon, German, Italian, and Greek society all intermingled with each other. He still greatly wanted Sicily, but would not disobey the pope as seeing what happened with the last German emperor who disobeyed the pope, Otto IV, was excommunicated and was rejected as emperor.In conclusion between 1197 and 1220 was a hectic time for the Holy Roman Empire. The king changed seven times during the course of the 23 years, and only once by death after he had ruled one year. No one ru...