Architect J.-B. A. Le Blond and his role in construction of Grand Peterhof Palace

In the course of studying archives, conducting exploratory research and restoration works, the author of the article has studied the history of construction and restoration of the largest facility of the Peterhof ensemble and describes unique facts based on historical data and his own experience, making a conclusion that architect J.-B. A. Le Blond had a decisive role in the early period of the construction of the Grand Peterhof Palace.