re-elected King of Bohemia on 15 August. Another attack by King Albert was repelled, and the Habsburg threat was finally ended with Albert's assassination by his nephew John in 1308. Although Henry was now one of the most powerful rulers in the Holy Roman Empire, his reign marked a period of instability in Bohemia. He was considered weak and wasteful by the Bohemian nobility, who began to look for a more capable successor. Meanwhile, the new German king Henry VII, a member of the House of Luxembourg, had also cast a covetous eye on the Bohemian kingdom. In 1310, Henry VII arranged the marriage of his eldest son John with Elizabeth, the younger sister of the late King Wenceslaus III. Backed by local nobles and his father, John's troops invaded Bohemia in October of 1310. He captured Prague on 3 December and deposed Henry for the second time. The German king seized the Bohemian fief and ceded it to his son John, who was crowned king the next year. Henry was forced to retire to Carinthia, where his wife Anna died without children in 1313. Retirement Henry managed to retain Carinthia and Tyrol through reconciliation with the Habsburgs, ceding the March on the Sann (Savinja Valley in today Slovenia) to the Habsburg Duchy of Styria. He also kept de facto control over Carniola. He nevertheless was not able to acquire the Carinthian estates that were held by the prince-bishops of Bamberg with the consent of Emperor Henry VII. Centred in a compact territory between Villach and Tarvis, these possessions enjoyed the status of a virtually sovereign principality, and had a crucial geostrategic position on the only major route from Carinthia to Friuli and Italy. On the other hand, Henry could reinforce his overlordship in Tyrol against the resistance of the Trent and Brixen prince-bishops. Despite his deposition, Henry continued to claim the title of king of Bohemia and the accompanying electoral dignity, voting for Habsburg candidate Frederick the Fair during the 1314 double election of the Holy Roman Emperor at Frankfurt. His contested right to vote was one of the reasons for the ambiguous result, as Henry's rival, the Luxembourg king John, gave his Bohemian vote to Louis IV of Bavaria. After Louis' victory in the 1322 Battle of Mühldorf, Henry helped to arrange an amicable settlement between the competitors. Henry also reconciled with the Luxembourgs and in 1330 married