Monastery of the Holy Trinity, Vilnius

Monastery of the Holy Trinity (Ukrainian: Монастир Святої Трійці, Lithuanian: Vienuolynas ir Šv. Trejybės cerkvė, Polish: monaster św. Trójcy) is a monastery built in Vilnius by the Ruthenian Church and Grand Hetman of Lithuania Konstanty Ostrogski as a thanksgiving to the God for the victory in Battle of Orsha.^[1] It now belongs to the Order of Saint Basil the Great and the Ukrainian Greek Catholic Church.

The church is dedicated to the Holy Trinity. Beside this church, the monastery compound contains a fortified entrance gate, a university, a hotel complex for visitors, monastic cells including the Konrad's cell. The church is surrounded by adjoining four towers at each corner.

This monastery is associated with the Union of Brest personalities like Josaphat Kuntsevych, Archbishop of Polatsk who took vows here and spent first years of his monastic life, as well as a prominent reformer of the Basilian Order, Veliamyn Rutsky.