INNOCENT III AND THE STATES OF EUROPE 473 EXERCISES AND READINGS The Secular Power of Innocent III. Thatcher and McNeal, Source Book for Medieval History, pp. 214-33, selections 123-35. Summarize the contents of each of these original documents, and connect each with some statement in the above chapter which it goes to prove or to illustrate. Frederick II and the Papacy. Thatcher and McNeal, Source Book for Medieval History, pp. 233-59, selections 136-45. Follow the above directions, but in the case of documents contain- ing numerous numbered articles, do not summarize each article, but try to state their general tenor in a few sentences. Reign of Henry VI. Henderson, Germany in the Middle Ages, chaps, xix, XX. Reign of Frederick II. Henderson, Germany in the Middle Ages, chaps, xxii-xxvi. Tout, Empire and Papacy, pp. 358-92. Frederick II and Sicily. Fisher, The Medieval Empire, vol. 11, pp. 167-200. Frederick II and the Lombard Communes. Butler, The Lombard Communes, chap. IX or x. The Fall of Ezzelino. Butler, The Lombard Communes, chap. XI.