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https://en.wikipedia.org/wiki/Makhachkala

Makhachkala previously known as Petrovskoye (Петровское; 1844–1857) and Port-Petrovsk (Петровск-Порт; 1857–1921), or by the local Kumyk name of Anji, is the capital and largest city of Dagestan, Russia. The city is located on the Caspian Sea, with a population of over 623,254 residents. Makhachkala is the fourth-largest city in the Caucasus, the largest city in the North Caucasus and the North Caucasian Federal District, as well as the third-largest city on the Caspian Sea. The city is extremely ethnically diverse, with a minor ethnic Russian population.