Henry the Lion of Saxony. As compensation for this, Austria, the capital of which had been transferred to Vienna about 1155, was elevated into a duchy according to the Privilegium Minus. Rise to power The second duke was Henry's son Leopold V, who succeeded him in 1177 and took part in the crusades of 1182 and 1190 as well as the Third Crusade. In Palestine, he quarrelled with King Richard I of England, captured him on his homeward journey and handed him over to Emperor Henry VI. Leopold increased the territories of the Babenbergs by acquiring the Duchy of Styria under the will of his kinsman Duke Ottokar IV. He died in 1194, and Austria fell to one son, Frederick, and Styria to another, Leopold; but on Frederick's death in 1198 they were again united by Leopold as Duke Leopold VI, surnamed "the Glorious". The new duke fought against the infidels in Spain, Egypt, and Palestine, but is more celebrated as a lawgiver, a patron of letters, and a founder of many towns. Under him Vienna became the centre of culture in Germany and the great school of Minnesingers. His later years were spent in strife with his son Frederick, and he died in 1230 at San Germano, now renamed Cassino, whither he had gone to arrange the peace between Emperor Frederick II and Pope Gregory IX. Extinction Frederick II, Leopold VI's son by Theodora Angelina, succeeded his father as duke upon the elder man's death in 1230. Frederick II soon earned the epithet "the Quarrelsome" from his ongoing disputes with the kings of Hungary and Bohemia and with Holy Roman Emperor Frederick II. Duke Frederick deprived his mother and sisters of their possessions, was hated by his subjects on account of his oppressive rule, and, in 1236, was placed under the imperial ban and driven from Austria. However, he was later restored to his duchy when Emperor Frederick II was excommunicated. Subsequently, Duke Frederick II treated with Emperor Frederick II in vain to make Austria a kingdom. The male line of the Babenbergs became extinct in 1246, when Frederick II was killed in battle (the Henneberg branch of the Franconian Babenbergs lived on until 1583 when its lands were divided among the two branches of the Wettin family). Frederick's heir general was Gertrude of Austria, the only child of his late elder brother, Henry of Austria by that man's