After Albert's murder, which took place in May 1308, Henry, count of Luxemburg, a brother of Baldwin (1285-1354), the powerful archbishop of Trier, became king as Henry VII. Although fortunate enough to obtain for his son John the crown of Bohemia, the aggrandizement of his family was not the main object of this remarkable sovereign, the last German king of the old, ambitious type. It was the memory of the Empire which stirred his blood; from the beginning of his reign he looked forward to securing the Lombard and the imperial crowns. His purpose to cross the Alps at the head of a great force was hailed with delight by the Ghibellines, whose aspirations found utterance in Dante's noble prose, but his life was too short for him to fulfil the hopes of his friends. Having restored the Rhine tolls to the Rhenish archbishops and made his peace with the Habsburgs, Henry went to Italy in the autumn of 1310, not, however, with a large army, and remained in the peninsula until his death in August 1313. As in former times the effect of the connexion of Germany with Italy was altogether mischievous, because to expedite his Italian journey the king had added to the great privileges of the princes and had repressed the energies of the towns. Louis the Bavarian and Frederick of Austria. After Henry's death the electors, again fearing lest the German crown should become hereditary, refused to choose the late king's young son, John of Bohemia, as their ruler, although the candidature of this prince was supported by the powerful archbishops Baldwin of Trier and Peter of Mainz. They failed, in fact, to agree upon any one candidate, and after a long delay there was a double election for the throne. This took place in October 1314, when the larger party chose Louis IV., duke of Upper Bavaria, while the smaller party gave their votes to Frederick the Fair, duke of Austria, a son of King Albert I. Although related to each other, Louis and Frederick had come to blows before this event; they represented two rival houses, those of Wittelsbach and Habsburg, and the election only served to feed the flame of their antagonism. A second time war broke out between them. The struggle, marked by numerous raids, sieges and skirmishes, lasted for nine years, being practically ended by Frederick's decisive defeat at Mühldorf in September 1322. The vanquished king remained in captivity until 1325, when, during the contest between the Empire and the Papacy, Louis came to terms with him. Frederick acknowledged his rival, and later the suggestion was put forward that they should rule Germany jointly, but this arrangement aroused much opposition and it came to nothing. Frederick returned into an honourable captivity and died in January 1330. Causes of the success of Louis.