At the core of this article lies the argument that the Ottoman grand vizierate and the rise of the Köprülü family to power in the seventeenth century should be studied and analyzed mainly within two analytical and comparative frameworks. First, we should situate the office of the grand vizier in a diachronic view of the Islamic vizierate. Second, the Köprülü grand vizierate, in particular, should be viewed as one part of a synchronic ‘Eurasian age of the chief minister,” in a historical domain stretching from early modern Mughal and Safavid worlds to European empires and kingdoms. This article presents preliminary observations that may form a blueprint for future investigations into this global aspect of the grand vizierate and chief ministry. A broad perspective that merges these diachronic and synchronic approaches will allow us to detect theoretical and practical peculiarities of the Ottoman grand vizierate in comparison to its peers in Islamic history and across early modern Eurasia. Using that Eurasian macro perspective, I argue that the Köprülü grand viziers spearheaded the restoration of an independent vizierial authority that was idealized by generations of pre-Ottoman and Ottoman political writers and had numerous precedents in Islamic history.1