Mehmed IV

Mehmed IV was Ottoman sultan from 1648 to 1687. His long reign saw major territorial expansion under Köprülü grand viziers and ended after the Ottoman defeat at Vienna and subsequent political crisis.

Köprülü Mehmed Pasha: An Ottoman grand vizier from 1656 to 1661 who restored central authority and launched military campaigns. His appointment began the Köprülü family’s decisive influence during Mehmed IV’s reign.
Köprülü era: A period of Ottoman government from 1656 to 1683 dominated by grand viziers from the Köprülü family. It explains how Mehmed IV’s ministers strengthened the state and directed expansion.
Siege of Candia: The 1648–1669 Ottoman siege that ended Venetian rule over Crete with the capture of Candia. Its costly victory was one of the most consequential achievements of Mehmed IV’s reign.
Holy League: A coalition formed in 1684 by the Habsburg Monarchy, Poland-Lithuania, and Venice to fight the Ottoman Empire. It turned the failed siege of Vienna into a coordinated campaign against Ottoman territory.
Köprülü Fazıl Ahmed Pasha: An Ottoman grand vizier from 1661 to 1676 who led campaigns against the Habsburgs, Venice, and Poland. He directed much of the empire’s expansion while Mehmed IV ruled.
Ottoman–Habsburg rivalry: A centuries-long political and military struggle between the Ottoman and Habsburg empires for influence in central and southeastern Europe. This rivalry shaped the campaigns that culminated in the 1683 siege of Vienna.
Battle of Saint Gotthard: The 1664 battle in which Habsburg and allied forces defeated an Ottoman army near the Rába River. The defeat checked Ottoman advances in Hungary despite the favorable Treaty of Vasvár.
Great Turkish War: The 1683–1699 war between the Ottoman Empire and the Holy League over control of central and southeastern Europe. The conflict began with the Vienna campaign launched during Mehmed IV’s reign.
Köprülü Fazıl Mustafa Pasha: An Ottoman grand vizier who led military and fiscal reforms before dying at the Battle of Slankamen in 1691. His later career shows the Köprülü family’s continuing role after Mehmed IV’s deposition.
Treaty of Vasvár: The 1664 treaty that ended the Austro-Turkish War and largely preserved the existing frontier despite Ottoman gains. It records the settlement after Mehmed IV’s forces fought the Habsburgs in Hungary.

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