Grand Vizier Siyavuş Pasha
Crotian-born Kanijeli Siyavuş Paşa (d. 1602), originally from Kanizsa in modern-day Hungary, served three times as the Ottoman Grand Vizier (1582–1584, 1586–1589, 1592–1593). Grand Vizier was the title of the effective head of government in the Ottoman Empire. As the absolute deputy of the sultan, the grand vizier held the imperial seal and could convene all other viziers to attend to affairs of the state. From 17th century onwards, the grand viziers gained political supremacy, while the sultans reigned in name only. In the 19th century, the grand vizier’s office became comparable to that of European prime minister.
Siyavuş Paşa married Fatma Sultan, the youngest daughter of Selim II and Nurbanu Sultan in 1573, who died while giving birth prematurely to a daughter in 1590. The couple were great patrons of architecture. They had two palaces in Üsküdar and a third within the city walls in Istanbul, near the Süleymaniye complex, all built by Mimar Sinan, the chief of royal architects.
He commissioned the construction of a madrasa from Sinan's successor, Davud Aga, in memory of Fatma Sultan, next to their palace, and opposite Hoca Hamza's mosque in Süleymaniye. In her will, together with the madrasa, she requested her husband to build a Friday Mosque, a dervish convent, an elementary school, a hospice, a caravanserai, a public fountain, a stone bridge and pavements. Like Murad III, Siyavuş Paşa commissioned luxuriously illustrated historical manuscripts. One such art work in his library was Zübdetü’t-Tevârîh (Cream of Histories), written by the court panegyrist Seyyid Lokman as a visualization of Murad III’s spiritual legitimacy.
In late spring 1583, bailo conveyed to the Senate an order of 5,000 round window panes (Ven. rui) needed for the restoration of the windows of the Old Palace, which he received on behalf of the sultan from Grand Vizier Siyavuş Paşa. The windowpanes were loaded on the ship Gagliana Grossa along with many other luxury items from the Murano workshops.