
The toponym Khatyalakhti translates from Finnish as "Khatya Bay," where Khatya is the family name of one of the first inhabitants of the village located on the shore of Lake Khatyalakhtenyarvi. In 1706 and 1723, the village had 13 households. In 1723, the village population was 68 people, and by 1810, the population had grown to 216.
In the vicinity of the village, manor estates were built from early times. The first was a Swede — Colonel Peter Stormkrantz, who was granted nine households in Khatyalakhti on November 24, 1648. During the height of the Northern War, the Khatyalakhti territory was granted to the Russian military leader Peter Bosse, in 1720 it became the property of Admiral Kornelius Kruys, and after the death of his widow, it came under the management of the Sestroretsk Arms Factory.
In the northern part of the village was the Mutalakhti estate. In 1906, the former Filonov estate was purchased by a St. Petersburg resident, Evgeny Yermolov. He rebuilt the manor house and also bought the neighboring Leonosov estate. Besides the mansion, this estate included greenhouses, a stable built from granite blocks with Gothic pointed window openings, a pier, numerous outbuildings, and spacious cellars. After 1918, the owners of the former Leonosov estate changed again. Initially, the owner was gardener Mangstrom, then it passed to a member of parliament, later the estate was acquired by Minister Albin Manner, who sold it in 1931 to Baroness Munkki. After her, the estate was transferred to the House for Disabled Veterans, where the "Khatyalakhti" Ranger House was organized, in which disabled rangers of the Civil War spent their rest, enjoying the picturesque surroundings.
Sources:
https://vokrug-ladogi.ru/dostoprimechatelnosti/sooruzheniya/usadba-mutalaxti/#map