Holy Trinity Alexander-Svirsky Monastery (Russian: Свято-Троицкий Александро-Свирский монастырь) is a Russian Orthodox monastery situated deep in the woods of the Leningrad Oblast, just south from its border with the Republic of Karelia. The golden age of this cloister falls in the 17th century. It was founded in 1487, when a monk of the Valaam Monastery, named Alexander, settled between Roschinsky and Holy lakes, 20 km to the east from Lake Ladoga and 6 km from the Svir River. During his life in the woods, he had a vision of the Holy Trinity who ordered him to build two oaken chapels dedicated to the Trinity and the Saviour's Transfiguration. These churches gave birth to the twin Trinity and the Transfiguration cloisters, collectively known as the Alexander Svirsky Monastery.