Original: Nine years later , in 1156 , Prince Yuri Dolgorukiy of Rostov ordered the construction of a wooden wall , the Kremlin , which had to be rebuilt multiple times , to surround the emerging city .
Simplified: Nine years later , in 1156 , Prince Yuri Dolgoruki ordered the building of a wooden wall , which had to be redone many times , to go around the growing city .