Rudolf II (18 July 1552 – 20 January 1612) was Holy Roman Emperor (1576–1612), King of Hungary and Croatia (as Rudolf I, 1572–1608), King of Bohemia (1575–1608/1611) and Archduke of Austria (1576–1608). He was a member of the House of Habsburg. Rudolf's legacy has traditionally been viewed in three ways: an ineffectual ruler whose mistakes led directly to the Thirty Years' War; a great and influential patron of Northern Mannerist art; and an intellectual devotee of occult arts and learning which helped seed what would be called the Scientific Revolution. Determined to unify Christendom, he initiated the Long Turkish War (1593–1606) with the Ottoman Empire. Exhausted by war, his citizens in Hungary revolted in the Bocskai Uprising, which led to more authority given to his brother Matthias. Under his reign, there was a policy of toleration towards Judaism. Early life Rudolf was born in Vienna on 18 July 1552. He was the eldest son and successor of Maximilian II, Holy Roman Emperor, King of Bohemia, and King of Hungary and Croatia; his mother was the Spanish princess Maria, a daughter of Charles V and Isabella of Portugal. He was the elder brother of Matthias who was to succeed him as King of Bohemia and Holy Roman Emperor. Rudolf spent eight formative years, from age 11 to 19 (1563–1571), in Spain, at the court of his maternal uncle Philip II, together with his younger brother Ernest, future governor of the Low Countries. After his return to Vienna, his father was concerned about Rudolf's aloof and stiff manner, typical of the more conservative Spanish court, rather than the more relaxed and open Austrian court; but his Spanish mother saw in him courtliness and refinement. In the years following his return to Vienna, Rudolf was crowned King of Hungary (1572), King of Bohemia and King of the Romans (1575) when his father was still alive. For the rest of his life, Rudolf would remain reserved, secretive, and largely a recluse who did not like to travel or even partake in the daily affairs of state. He was more intrigued by occult learning such as astrology and alchemy, which was mainstream in the Renaissance period, and had a wide variety of personal hobbies such as horses, clocks, collecting rarities, and being a patron of the arts. He suffered from periodic bouts of "melancholy" (depression), which was common in the Habsburg line. These became worse