Soon after the Slavic settlement, gards fortified with walls of wood and clay were built.
During this time, the town was fortified with defensive walls, three main gates and a postern.
The residence was immediately fortified with a bulwark, wooden walls, and a moat.
During Medieval times the city was fortified with walls and moats.
The village was granted town rights no later than 1349 and was fortified with walls and towers.
Usually these villages were fortified with walls and palisades made of stone and wood.
Consequently, the old castle on the acropolis was fortified with walls, giving it a typical medieval appearance.
The southern and northern edges were also fortified with walls.
In 1156, Yuri fortified Moscow with wooden walls and a moat.
The city was probably fortified with wooden walls before this time.