Fazıl Mustafa Köprülü (1637 – August 19, 1691), of the Köprülü family, was the grand vizier of the Ottoman Empire from 1689. He was killed in the Battle of Slankamen by Austrian forces. Events February 3 - Tulipmania collapses in Netherlands by government order February 15 - Ferdinand III becomes Holy Roman Emperor December 17 - Shimabara Rebellion erupts in Japan Pierre de Fermat makes a marginal claim to have proof of what would become known as Fermats last theorem. ... August 19 is the 231st day of the year (232nd in leap years) in the Gregorian Calendar. ... Events March 5 - French troops under Marshal Louis-Francois de Boufflers besiege the Spanish-held town of Mons March 29 - Siege of Mons ends to the city’s surrender October 3 - Treaty of Limerick which guaranteed civil rights to catholics was signed. ... The Köprülü (also Kiuprili, Koprili and Kuprili) was an Ottoman noble family of Albanian origin. ... A Vizier (وزير, sometimes also spelled Wazir) is an Arabic term for a high-ranking religious and political advisor, often to a king or sultan. ... The Ottoman Empire at the height of its power Imperial motto El Muzaffer Daima The Ever Victorious (as written in tugra) Official language Ottoman Turkish Capital İstanbul (Constantinople/Asitane/Konstantiniyye ) Sovereigns Sultans of the Osmanli Dynasty Population ca 40 million Area 6. ... Events Louis XIV of France passed the Code Noir, allowing the full use of slaves in the French colonies. ... The Battle of Slankamen was fought on August 19, 1691 near Slankamen (Salankamen), northwest of Belgrade, between Austrian and German forces. ...