The Ottoman Silistra Province was reduced in size, as the districts of Özi and Hocabey and the region of Bessarabia were ceded to the Russian Empire at the end of the 18th century and the beginning of the 19th century. Edirne Province was created from its southern regions in 1830. Finally, Silistra Province merged with the provinces of Vidin and Niš in 1864 to form Danube Province. Silistra was downgraded to a "kaza" centre in Ruse district in this province in the same year.