Church of St. Gertrude (Šv. Gertrūdos bažnyčia) is one of the oldest Brick Gothic churches in Lithuania. The exact date when the church was built is unknown, but it must have been in the 15th century. In 1503 Grand Duke of Lithuania Alexander designated the church as a parish church of Kaunas. In the middle of the 16th century a bell tower was attached. The church was damaged in 1655 during the Russo-Polish War (1654–1667). It was rebuilt only around 1680. Around 1750 a wooden hospital was attached to the church. In 1782 it was abandoned for a long time, and at the time there were 5 monks from order of St. Roch residing. In 1796 the church was renovated, organs installed, and living quarters for aparson established. The church was consecrated in 1794.
In 1812 Kaunas suffered from a major fire, which also damaged the church. The hospital was abandoned, and in 1824 transferred to the sister order of Caritas. The monastery was closed in 1864 after the January Uprising. The old hospital was demolished in 1880. In 1921 the church was assigned to the Marianites of Holy Cross and a monastery was built nearby. In 1920 the church was daubed. In 1992 a complex renovation of the church and monastery took place. Since 1991 the Mass is held in the church again, and the Marianites monastery has been returned to the monks.
References:Saint-Georges de Boscherville Abbey is a former Benedictine abbey. It was founded in about 1113 by Guillaume de Tancarville on the site of an earlier establishment of secular canons and settled by monks from the Abbey of Saint-Evroul. The abbey church made of Caumont stone was erected from 1113 to 1140. The Norman builders aimed to have very well-lit naves and they did this by means of tall, large windows, initially made possible by a wooden ceiling, which prevented uplift, although this was replaced by a Gothic vault in the 13th century. The chapter room was built after the abbey church and dates from the last quarter of the 12th century.
The arrival of the Maurist monks in 1659, after the disasters of the Wars of Religion, helped to get the abbey back on a firmer spiritual, architectural and economic footing. They erected a large monastic building one wing of which fitted tightly around the chapter house (which was otherwise left as it was).