The Dukes of Leuchtenberg are direct descendants of Emperor Nicholas I and Prince Bagration, leaving a significant cultural and architectural legacy, among which the unique Peterhof estate stands out. To this day, the once majestic palace of the Dukes of Leuchtenberg and the neglected garden remain cultural heritage sites.

The estate was established long before the Leuchtenberg family appeared. It was founded by the outstanding Russian diplomat and general Alexander Ivanovich Rumyantsev, and later it belonged to his famous son Rumyantsev-Zadunaisky. Under the second owner, the estate was named Sergeevka in honor of his son Sergey. However, the Rumyantsevs soon sold the estate. After a series of ownership changes, Emperor Nicholas I acquired it as a gift for his eldest daughter and her husband, the Leuchtenberg.

Construction of the large palace in the classical style began in 1839 at the request of Duke Maximilian of Leuchtenberg, with the project developed by the renowned architect Andrei Ivanovich Stakenschneider. By 1842, the construction was completed, and for three-quarters of a century, the palace served as the family nest of the Leuchtenbergs. Other buildings were also constructed on the estate, including the kitchen and hofmeister's wings. Around these magnificent structures, a beautiful garden was laid out, and the nature of the estate became a rare treasure.

After the Bolsheviks came to power, the estate was confiscated from the royal relatives. In the following decades, it suffered greatly and was transferred to a biological research institute. In our time, renovation work has been carried out, but it has not been possible to fully restore its former splendor. Nevertheless, the estate has survived, and its buildings and natural monuments continue to impress with their beauty.