even hoped for the royal title from the hands of the Habsburg emperor Frederick III by marrying their children Mary and Maximilian. Deeply disappointed, he entered into the disastrous Burgundian Wars and was killed in the Battle of Nancy. History Upon the death of Mary of Burgundy in 1482, her substantial possessions including the Burgundian Netherlands passed to her son, Philip (also known as Philip the Handsome), who married Joanna of Castile the daughter of Isabel I of Castile and Ferdinand II of Aragon, known as the Catholic Monarchs. Through his father Maximilian I, Holy Roman Emperor from 1493, Philip was a Habsburg scion, and so the period of the Habsburg Netherlands began. The period 1481–1492 saw the Flemish cities revolt and Utrecht embroiled in civil war, but by the turn of the century both areas had been pacified by the Austrian rulers. Philip's son Charles, born in Ghent, succeeded his father in 1506, when he was just a six-year-old minor. His paternal grandfather, Emperor Maximilian I, incorporated the Burgundian heritage into the Burgundian Circle, whereafter the territories in the far west of the Empire developed a certain grade of autonomy. Through his mother Joanna of Castile, who had a mental breakdown following the death of her husband, he was heir to the Spanish kingdoms of Castile and Aragon and Spain's overseas empire in the New World. Attaining full age in 1515, Charles went on to rule his Burgundian heritage as a native Netherlander. He acquired the lands of Overijssel and the Bishopric of Utrecht (see Guelders Wars), purchased Friesland from Duke George of Saxony and regained Groningen and Gelderland. His Seventeen Provinces were re-organised in the 1548 Burgundian Treaty, whereby the Imperial estates represented in the Imperial Diet at Augsburg acknowledged a certain autonomy of the Netherlands. It was followed by a pragmatic sanction by the Emperor the next year, which established the Seventeen Provinces as an entity separate from the Empire and from France. Following a series of abdications between 1555 and 1556, Charles V divided the House of Habsburg into an Austrian-German and a Spanish branch. His brother Ferdinand I became suo jure monarch in Austria, Bohemia and Hungary, as well as the new Holy Roman Emperor. Philip II of Spain, Charles' son, inherited the Seventeen Provinces and incorporated them into the Spanish Crown (which included also south Italy and the American possessions). King Philip II of