It was the Preparatory Commission, referred to also as the Commission for Code Amendments, that in the Kingdom of Poland, in the years 1815–1817, was assigned the task of preparing the amendments to the Napoleonic Code. These were Jan Wincenty Bandtke, Antoni Wyczechowski and Prince Adam Czartoryski who demonstrated particular activity in to Commission since they had their own plans of forming national law. However the plans of codifying property law on the basis of old-Polish and Lithuanian patterns were sharply criticized in the Administrative Council (the debate of the 26 th of March 1817) ad in the Governmental Commission of Justice. Despite the fact that Tsar Alexander I and the political millieu in Petersburg suggested that the work over codification be postponed until non-specified date, the Lawmaking Commission, composed of 8 members, continued the fragmentary codifying efforts in 1817–1818. These efforts resulted in the amendments to the law of marriage, of mortgage, and the law on marking out borders as well as that referring to interest rates and moratory questions. The amendments were adopted by the Seym in 1818.