The Transfiguration Church in Kovalyovo was built around 1345. The southern annex is thought to have been designed as the burial vault of the Zhabin family. The church was notable for the frescoes created in the 14th century. During the Second World War, between 1941 and 1943, the church was destroyed. After the war, the ruins were conserved. In the 1960s, fragments of the frescoes were restored. Only 16 square metres originally survived, but the restorers (led by Alexander Grekov and Valentina Grekova) managed to retrieve about 160 square metres of frescoes from the debris. In 1970, the church was rebuilt to a design by Leonid Krasnorechyev.
The church is constructed in brick, and has one dome. It has a single apse and four square columns. This design is typical for pre-Mongol Novgorod churches. There are two auxiliary chapels of different size flanking the main building from the south and from the north. The south chapel has a set of limestone crosses inserted in the walls. The system of vault roofing features three semicircular wall gables (zakomara) which hark back to the pre-Mongol period. The pillars are square rather than circular or octagonal, as was typical for the 14th century.
The frescoes, created ca. 1380, covered the apse, the inner surface of the dome, the southern and the northern walls of the church, some of the pillars, and the interior of the western chapel. They were sponsored by Afanasy Stepanovich and his wife. The frescoes are thought to have been painted by a team of Balkan (possibly Serbian) painters. Their static and hieratic style has little in common with other Novgorodian frescoes of the period; but it shares similarities with the older Byzantine tradition. The total area of the frescoes was 450 square metres.
The interior of the dome was filled with images of the prophets. But it is the images of warrior saints that predominate. This is usually explained by the fact that in the 1370s the Grand Duchy of Moscow, with the support of other Russian states, was preparing to fight against the Golden Horde, culminating in 1380 with the Battle of Kulikovo. There is also the first Russian image of the dead Jesus Christ in the tomb.
References:The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.