In southern Mount Lebanon in 1590, Fakhr-al-Din II became the successor to Korkmaz. He soon established his authority as paramount prince of the Druze in the Shouf area of Mount Lebanon. Eventually, Fakhr-al-Din II was appointed Sanjakbey (Governor) of several Ottoman sub-provinces, with responsibility for tax-gathering. He extended his control over a substantial part of Mount Lebanon and its coastal area, even building a fort as far inland as Palmyra. This over-reaching eventually became too much for Ottoman Sultan Murad IV, who sent a punitive expedition to capture him in 1633. He was taken to Istanbul, kept in prison for two years and then executed along with one of his sons in April 1635. Surviving members of Fakhr al-Din's family ruled a reduced area under closer Ottoman control until the end of the 17th century.