A detailed acquaintance with the judicial order that existed in the Lithuanian-Russian state in the 16th century convinces that excessive, due to various circumstances, encumbrance led. the princes of Lithuanian court cases forced this state to embark quite early on the path of reforms in the field of the judicial system and the process in general and that the creation of Gl. The Lithuanian Tribunal, which completed the cycle of judicial reforms, was an inevitable and quite logical result of both phenomena now named, which were in close contact with each other.