Battle of Nicopolis
The Sanjak of Vidin or the Vidin Sanjak (, , ) was a sanjak in the Ottoman Empire, with Vidin as its administrative centre. It was established after the Battle of Nicopolis in 1396 out of the territories of the Tsardom of Vidin and in the mid-15th century annexed some territories that belonged to the Serbian Despotate before the Ottomans captured it.