The constitution remained in force for less than 15 months .
The constitution was abolished following the Constitution War against Russia and the Russian - supported Targowica Confederation , a coalition of Polish magnates and landless nobility who opposed reforms that might have weakened their influence .
The constitution remained in force for less than 15 months and was abolished following the Constitution War against Russia and the Russian - supported Targowica Confederation , a coalition of Polish magnates and landless nobility who opposed reforms that might have weakened their influence .