Эриванское ханство
Immediately after the Russian-Iranian War of 1826-1828, the Russians "combined the former Iranian khanates of Yerevan and Nakhichevan into the newly formed Armenian Province". As per the Russian surveys which were conducted by Ivan Chopin from 1829 to 1832, the Muslim (Tatar, Kurdish and Iranian) population of the Erivan Khanate in the last year of Iranian rule had amounted to 49,875 (71,5%) of the total population of the khanate. The Armenian natives of the Erivan Khanate numbered 20,073 (28,5%) in the same year. The Muslim population of the Nakhichevan Khanate had been 24,385 (83%), whereas Armenians numbered 5,078 (17%). According to the 1829-1832 Russian surveys, on the eve of the Russian conquest, the total number of inhabitants of what was bound to become the Russian-administered Armenian Oblast (i.e., the combined number of people of the Erivan and Nakhichevan khanates), amounted to 99,411, of which 74,260 (75%) were Muslims and 25,151 were Armenians (25%). Bournoutian estimates that if the ruling Qajar hierarchy and the nomads who left after the war are added, the total population was somewhat over 100,000. Ethnic Armenians were a majority in only 3 (Kırk-Bulagh, Sardarabad and Karbi-Basar) of the 15 "mahals" of the Erivan Khanate, and just in 1 (Agulis/Akulis) of the 10 "mahals" of the Nakhichevan Khanate.