The Kremikovtsi Monastery of Saint George is a Bulgarian Orthodox monastery near Kremikovtsi to the northeast of the Bulgarian capital Sofia. Founded during the Second Bulgarian Empire (12th–14th century) and re-established in 1493 by a local Bulgarian noble, the monastery includes two churches. Of these, the older medieval church is notable for its highly regarded 15th-century frescoes.
The old church features frescoes from several periods on its interior walls. The first layer of mural art was ordered by Radivoy and includes a donor's (ktetor's) portrait of Radivoy and his family presenting a model of church together with Kalevit. The frescoes from this period, which are mostly to be found in the east side of the narthex, are regarded among the most precious Bulgarian art from the 15th century. They have been described as accurate and convincing in their portrayal and as having a warm palette. Additional frescoes were done during the 17th and 18th centuries. A mural painting of a seated Saint George resting his feet on a dragon decorates the church's main section. Another image of the same saint (though on horseback) was painted on a niche on the south wall. The main feature of the altar space is a painting of the Theotokos (Mother of God).
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.