Heydarbey is a village in the Borchali uezd of the former Tiflis governorate, in the former Jalaloglu (Stepanavan) district, and currently in the Lori province. The provincial centre is located 46 km to the northwest of the town of Boyuk Garakilsa (Vanadzor), at a height of 1,500 m above sea level.

The village was inhabited by 4 Azerbaijanis in 1831, 16 in 1886 and 10 Azerbaijanis in 1897. At the beginning of the 20th century, in 1906, the Azerbaijanis were deported from their historical and ethnic lands by Armenian armed forces. At present, the village is inhabited by Armenians.

The toponym was coined on the basis of the personal name “Heydar bey”. That is, the village was named after its founder Heydar bey.

By the decree of the Presidium of the Supreme Soviet of the Armenian SSR dated 1 June 1940, the village was renamed “Sverdlov”. According to the law “On the administrative-territorial division of the Republic of Armenia” dated 7 November 1995, it was integrated into the administrative territory of the Lori province.

Geographical coordinates: latitude: 41°06’ N., longitude: 44°24’ E.