the plans of Józef Fontana. Following the failed November Uprising against the Russian Empire, in 1834 the church was confiscated by the Russian authorities and turned into an Orthodox church of the Holy Trinity. Between 1835 and 1837 it was yet again reconstructed in a style reminiscent of Rastrelli's baroque churches. Its authors were Antonio Corazzi and Andrzej Gołuński. During the reconstruction much of the internal design was destroyed and replaced with Orthodox frescoes as well as with a large iconostasis. In addition, large, onion domes were added to both towers. Simultaneously, the surrounding buildings of the former Piarist monastery and Humański's Palace were also reconstructed to suit the Russian style. After the Russians left Warsaw in 1915, the church was used by the German army stationed in Warsaw as a depot. After Poland regained her independence in 1918, the decision was made to reconstruct the church back to its former look. Between 1923 and 1927 the church was yet again reconstructed, this time by Oskar Sosnowski, who based his design on 17th century drawings. After the refurbishment the shrine was yet again consecrated as a Catholic church, but it was not returned to the Piarists. Instead, it rose to the dignity of a cathedral, as it became the seat of the field bishop of the Polish Army. During the Warsaw Uprising of 1944 the cathedral was one of the churches frequently targeted by the Luftwaffe. Heavy fights were also fought for the ruins, as the preserved western tower was used as an observation post. At the same time the cellars of the monastery and the crypts beneath the church were used as a provisional field hospital. The remnants of the church, along with the hospital, were destroyed by German aerial bombardment on August 20, 1944. After the war, between 1946 and 1960 the church was restored to its former glory by a team of architects led by Leon Marek Suzin. The church remained the seat of the bishop of the army, though that post was almost purely titular as in Communist-led Poland religion had no place in the army. The official institution of the Field Bishop of the Polish Army (along with similar posts for other denominations) was restored after Poland regained sovereignty following the 1989 Autumn of Nations. The church consequently regained the status of a cathedral becoming the seat of the Military Ordinariate of Poland, one of