1203–1204. Hungary. | _d._ 1207. | | +-----------------+ | | | | ALEXIUS IV., Irene, Demetrius, murdered _m._ Philip King of Thessalonica, 1204. of Swabia. dep. 1222. GENEALOGY OF THE LATIN EMPERORS OF CONSTANTINOPLE. Louis VI. of France. | | Peter, Baldwin VIII., Count of Flanders. _m._ heiress of Courtenay. | | +--------------+--+-----------+ | | | | | BALDWIN I. HENRY, Iolande _m._ PETER of Courtenay, (IX. of Flanders), 1206–1216. | 1216–1217, 1204–1205. | ob. 1218. | +-------------+----------+ | | ROBERT, BALDWIN II., 1218–1228. 1228–1261, ob. 1273, _m._ Mary, daughter of JOHN OF BRIENNE, Co-Emperor, 1231–1237. CHAPTER XVI FREDERICK II. AND THE PAPACY[28] (1216–1250) Character and Policy of Frederick II.—His Work in Naples and Sicily—Frederick and Honorius III.—The Early Struggles of Frederick and Gregory IX.—Frederick’s Crusade and its Consequences—Peace of San Germano—Germany under Frederick—St. Engelbert and Henry VII.—German Civilisation under the Later Hohenstaufen—The Eastward Expansion of Germany—Livonia and Prussia—Frederick and the Lombard League—Battle of Cortenuova—Renewed Struggle with Gregory IX.—The Tartars—Innocent IV. and the Council of Lyons—Henry Raspe and William of Holland—The Italian Struggle—Frederick’s Plans for Ecclesiastical Revolution—Frederick’s Death. [Sidenote: Character of Frederick II.]