Before the restoration work, the archaeological research had been done gradually by the archaeologists from the city of Ústí nad Labem, firm Archaia Prague and the Český Krumlov District National History and Geography Museum in years 1999-2000.
The archaeologists did altogether twelve probing in the ground-floor rooms and the yard (in the picture). Besides recent and modern layers (the 16th-19th century), late Middle Ages cultural layers (14th-15th century) were proved by evidence in their original location. Cultural layers and shallow holes dating from the period of the town foundation and its beginning (13th century) were found in six probing (No. 4, 5, 8, 9, 11 and 12). The Middle Ages origin of some constructions can not be eliminated.
They managed to prove a very interesting situation in probing No. 10 (a ground plan and an east profile of the probing in the picture). The loose destruction layer 10005 (bricks, brick fragments, quarry stone and earth, pebbles and mortar) contained animal bones and pottery fragments dating from the Modern Ages. The layer 10005 made the filling of the half-ground building. They were able to uncover the west inner round corner and a bigger part of the north-west peripheral wall. The inner walls converge at the floor which was not uncovered due to the securely-technical reason. The walls are made of the masonry 10006 which consists of quarry stone and mortar. Red colour gives evidence of the fire.
The current house walls respect the bearings and partly location of the peripheral walls (the north-west wall). The half-ground building can be an evidence of an older, so far unknowable phase of the house (a cellar?) or a remainder of the utility room in its interior. It will be necessary to do another research work in order to find out the accurate shape and date of origin.
The Early Middle Ages pottery fragments (in the picture) were rarely found in the cultural layers dating from the 13th century. Three pottery fragments from probing No. 5 (picture 1 and 2 dating from the 8th-9th century) and probing No. 11 (picture 3 dating from the 11th-12th century). The Early Middle Ages pottery fragment found in the cultural layer dating from the second half of the 13th century, in approximately 60 metres distant house No. 15 in Svornosti Square is another evidence of the Early Middle Ages settlement (The Primeval and the Early Middle Ages Settlement in the area of the town of Český Krumlov).
Further information :
The archaeological researches in the town of Český Krumlov
The archaeological research of the medieval town of Český Krumlov