Transfiguration Church (Belarusian: Спаса-Праабражэнская царква, romanized: Spasa-Praabraženskaja carkva) of the St. Euphrosine monastery in Polotsk, Belarus is a unique monument of Pre-Mongol Rus architecture.

To further emphasize it, the zakomaras, Brovka [ru] and Kokoshniks are styled in long vertical shapes, while the side naves are narrowed.

The researchers date the frescoes to the early 12th century; most likely, the church was painted between 1133 and 1145 by order of Euphrosyne of Polotsk.

Modern restotators in 2006-2017 managed to save both layers, they extracted the younger frescoes and transferred them to a new base.

[2][4] The contemporary researchers also discovered numerous valuable examples of Medieval literacy - the graffiti, written on the walls, altar, stairs and other parts of the church.

[6] During the excavations, the archeologists found more than 10.000 pieces of frescoes and miscellaneous objects such as a part of horace, mosaics and floor tiles, a lead roofing sheet,[6] a stamp for Euphrosyne’s personal seal.