مدحت باشا
The 1864 Vilayet Law (, ; , also known as the Provincial Reform Law, was introduced during the Tanzimat era of the late Ottoman Empire. This era of administration was marked by reform movements, with provincial movements led largely by Midhat Pasha, a key player in the Vilayet Law itself. The Vilayet Law reorganized the provinces within the empire, replacing the medieval eyalet system.