Albert the Magnanimous KG, elected King of the Romans as Albert II (10 August 139727 October 1439) was king of the Holy Roman Empire and a member of the House of Habsburg. By inheritance he became Albert V, Duke of Austria. Through his wife (jure uxoris) he also became King of Hungary, Croatia, Bohemia, and inherited a claim to the Duchy of Luxembourg. Biography Albert was born in Vienna as the son of Albert IV, Duke of Austria, and Joanna Sophia of Bavaria. He succeeded to the Duchy of Austria at the age of seven on his father's death in 1404. His uncle Duke William of Inner Austria, then head of the rivaling Leopoldinian line, served as regent for his nephew, followed by his brothers Leopold IV and Ernest the Iron in 1406. The quarrels between the brothers and their continued attempts to gain control over the Albertinian territories led to civil war-like conditions. Nevertheless, Albert, having received a good education, undertook the government of Austria proper on the occasion of Leopold's death in 1411 and succeeded, with the aid of his advisers, in ridding the duchy of the evils which had arisen during his minority. In 1422 Albert married Elisabeth of Luxemburg, the daughter and heiress of the King Sigismund of Hungary (later also Holy Roman Emperor and King of Bohemia), and his second wife, the Slovenian noblewoman Barbara of Celje. Besides Hungary, Albert's marriage brought him claims to several Slavic kingdoms and principalities as well. Albert assisted his father-in-law Sigismund in his campaigns against the Hussites, involving the Austrian duchy in the Hussite Wars. In return Sigismund designated him as his successor and granted him the title of a Margrave of Moravia in 1423. The Austrian lands were devastated several times and Albert also participated in the 1431 Battle of Domažlice where the Imperial troops suffered an embarrassing defeat. When Sigismund died in 1437, Albert was crowned king of Hungary on 1 January 1438, and just as his predecessor did, he moved his court to the Hungarian Kingdom from where he later oversaw his other domains. Although crowned king of Bohemia six months after ascending to the Hungarian throne, he was unable to obtain possession of the country. He was engaged in warfare with the Bohemians and their Polish allies, when on 18 March 1438, he was chosen "King of the Romans" at Frankfurt, an honour which he