Answer: Justinian I
Explanation: Justinian I was the Byzantine emperor in the period from 527 to 565, known for his law known as Code of Justinian, and reorganizing the government. His reign is marked by the implementation of a uniform law, which is valid for all. In essence, the Justinian Code is not a revolutionary law, but a collection and clarification of the Roman Law, with a strong implementation and obligation for all. The significance of this systematization and clarification of laws and strict implantation in real life is that until then the law was in chaos with many clauses and possibilities for corruption.