Zadé Kiuprili repleted the treasury by heavy contributions on the officials, who had enriched themselves at the expense of the public. He filled the ranks of the army by calling out veterans. He revived the Ottoman navy. He fitted out a flotilla of vessels for service on the Danube. He replaced a number of incompetent and corrupt governors by honest men on whom he could rely. He endeavoured to win the support of the Christian rayas throughout the Empire. He issued imperative orders to all governors and pashas that no one should be allowed to oppress the rayas. No taxes were to be levied on them except the capitation tax. He allowed the Christians everywhere to build churches, though he himself was a most strict Mussulman. He freed trade from many unwise and unnecessary restrictions. He was personally austere and simple in his habits, very reserved in his utterances. It was said of him that he never committed a crime and never used a superfluous word. He was commonly called ‘Kiuprili the Virtuous.’ Unfortunately for his country, he held the post of Grand Vizier for less than two years, for it will be seen that he was killed in battle in 1691. At the time when he assumed the Grand Vizierate the Austrians had crossed the Danube and had advanced far into Macedonia. Kiuprili sent an army against them and defeated them in two engagements. As a result, nearly all the important posts south of the Danube were recovered and the pressure on the Empire in this quarter was removed. Zadé Kiuprili now took command of the army in person, and in August, 1690, advanced through Bulgaria, drove the Austrians from their position between Sofia and Nisch, and besieged and captured the latter place. He then attacked and captured in succession Semendria, Widdin, and Belgrade. Another Ottoman army under Tekeli Pasha invaded Transylvania and drove the Austrians from it. Kiuprili returned to Constantinople covered with glory.