Administrative divisions of Lithuania Governorate (consisting of eleven districts) and Slonim Governorate, were established after the third partition of the Polish–Lithuanian Commonwealth. Just a year later, on December 12, 1796, they were merged into one governorate, called Lithuania Governorate, with capital in Vilnius. In 1801 Lithuania Governorate was split into Lithuania-Vilna Governorate and Lithuania-Grodno Governorate. Forty years later the word "Lithuania" was dropped from the two names and official maps of Europe. The territory of the former Grand Duchy of Lithuania became known as the Northwestern Krai. In 1843 another administrative reform took place, creating Kovno Governorate out of seven western districts of the
Law of Lithuania the Grand Duke of Lithuania Casimir Jagiellon with the Lithuanian Council of Lords. It is considered to be the first codified law of the Grand Duchy of Lithuania. Statutes of Lithuania, published three times (in 1529, 1566 and 1588) were the most influent legal codes of Lithuania. The third variant of the Statute was in force in the territory of Lithuania until 1840 when it got replaced by the Russian laws. However, under the rule of the Russian Empire, there were three separate civil law systems in force in Lithuania: in Suvalkija the Napoleonic Code was still applied, whereas the