Holy Trinity Church in Vilnius is a remarkable monument of architecture and spirituality, located in the historical center of the city. Founded in 1514 by Grand Hetman of Lithuania Konstanty Ostrogski in gratitude for the victory at the Battle of Orsha, the church became a symbol of faith and cultural heritage of the Grand Duchy of Lithuania.
The architectural ensemble includes the church itself, the Basilian monastery, a massive quadrangular bell tower, and ornate Baroque gates with two arched passages. The building combines elements of Gothic, Baroque, and Byzantine styles, giving it a unique appearance.
In 1609, by the decree of King Sigismund III Vasa, the church and monastery were transferred to the Basilian Order. Notable figures such as Josaphat Kuntsevych and Veliamyn Rutsky studied and served here. The monastery also housed a printing press, where in 1596 the first primer for Eastern Slavs, written by Lavrentiy Zyzaniy, was published.
In the 19th century, the monastery was closed, and its premises were used as a prison. In 1823–1824, members of the secret society Philomaths, including poet Adam Mickiewicz, were imprisoned here. This place became known as "Konrad's Cell," becoming part of Vilnius' literary heritage.
Today, the church belongs to the Ukrainian Greek Catholic Church and serves as a spiritual center for the Ukrainian community in Vilnius. Services are conducted in Ukrainian, emphasizing its significance as a cultural and religious hub.
Holy Trinity Church remains an important historical and architectural landmark of Vilnius, where centuries-old history, rich spiritual heritage, and unique architecture come together, attracting both worshippers and tourists.