Transfiguration monastery was founded in 1192 by Martiry Rushanin, who built the wooden Transfiguration Church. At the time, the area belonged to the Novgorod Republic, and the construction of the church was approved by Grigory, the Archbishop of Novgorod. In 1193, Martiry himself was promoted to be the Archbishop of Novgorod and Pskov. Presumably, the wooden church burned down, and in 1198, Martiry founded the stone Transfiguration Church, which still exists. In 1442, the church was considerably rebuilt. Between 1611 and 1615, during the Ingrian War, Staraya Russa, and the monastery in particular, were occupied by Swedish troops. The monastery was badly damaged and rebuilt subsequently in the middle of the 17th century. The Transfiguration Church was considerably altered. Some of the existing churches were constructed in the 17th century. The wall and the towers originate from the 19th century. The monastery was abolished after the 1917 October Revolution, and the buildings were badly damaged during the World War II. Most of the cell buildings were subsequently demolished.
The oldest building of the monastery is the Transfiguration Cathedral, which was founded in 1198 by Martiry and completely rebuilt in 1442, so that only the lowest parts of the walls survive from the 12th century. In the 1620s, after the Swedish occupation, is was rebuilt again, and the dome was altered, but the main features of the exterior and the interior were preserved. The cathedral was damaged during the World War II and underwent extensive restoration in the 1960s. Subsequently, it was transferred to the museum.
The Church of the Nativity of Christ was constructed around 1630. It is a small brickstone church with one dome. In 1892, it was re-consecrated and became the church of Saints Cyril and Methodius. It was also damaged in the war and restored in the 1960s. The Presentation Church, which currently hosts the art division of the museum, was built in the same period and also has one dome.
The two chapels, the Alexander Nevsky Chapel and the Saviour Chapel, as well as the Church of the Staraya Russa Icon of the Virgin, were built in the 19th century.
References:Celje Castle was once the largest fortification on Slovenian territory. The first fortified building on the site (a Romanesque palace) was built in the first half of the 13th century by the Counts of Heunburg from Carinthia on the stony outcrop on the western side of the ridge where the castle stands. It had five sides, or four plus the southern side, which was a natural defence. The first written records of the castle date back to between 1125 and 1137; it was probably built by Count Gunter. In the western section of the castle, there was a building with several floors. Remains of the walls of this palatium have survived. In the eastern section, there was an enclosed courtyard with large water reservoirs. The eastern wall, which protects the castle from its most exposed side, was around three metres thicker than the rest of the curtain wall. The wall was topped with a parapet and protected walkway.