Alexander Yakovlevich Dubov was a builder and architect who worked in Baku from 1904 until the end of his life, where he participated in the construction of a number of monumental buildings in the city.

In 1902–1904, he built a palace in Gagra, on the estate of the Duke Alexander of Oldenburg, the husband of the younger sister of the Emperor Nicholas II, Olga Alexandrovna.

As a token of gratitude for the successful work on the palace's construction, the Prince of Oldenburg awarded Alexandr Dubov with a silver personalized cigarette case.

The customer did not believe in the reinforced concrete structure and therefore signed a contract with the architect for the restoration of the building within 5 days and the compensation for damages was established three times higher the amount in case of its destruction.

Later, Alexandr Dubov worked as a specialist in reinforced concrete, then as the head of construction at the "Kayalov" firm, at the same time designing in the studio of the architect T.M.Ter-Mikelov.