sentences:  According to the privilege of 1506 by his brother Sigismund the Old, the new laws could no longer be adopted and the existing could not be amended without the Council's consent.The First Lithuanian Statute of 1529 confirmed its administrative powers, as well as granted legislative powers, exercised together with the Grand Duke of Lithuania.The Council's legislative powers were limited under the subsequent edition of the Lithuanian Statute of 1566, as a result of a growing role of szlachta and its Sejms.