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:Sigmaringen Castle was first mentioned in the year 1077 in the chronicles of Petershausen monastery. The oldest parts of the castle are concealed beneath the alterations made during the 17th and the 19th centuries. The secret of the earliest settlement built on this defendable rock will never be fully revealed: large-scale excavation work would be necessary, which the extensive land development renders impossible. Judging from the many Roman remains unearthed in the area around Sigmaringen, the 12th century keep known as the 'Roman Tower' could be traced back to a Roman predecessor.
The castle remains that have been preserved (gate, great hall and keep) date back to the Staufer period around 1200. The castle remains were integrated into subsequent buildings. The foundations of the castle buildings are to a large extent identical to the surrounding castle wall.
These remains give us a good idea of how the castle might have looked during the 12th century.