Napoleon abolished Feudalism in all the territories under his control. The revolution spread with Napoleon
He also codified laws and created constitutions.
He stripped the church of its powers and religious tolerance became law. He stopped the persecution of Jews in Spain (inquisition did not end till 1834)
Many of these reforms created pro-Napoleon support throughout Europe.
Napoleon’s allies and dependant kingdoms were required to supply money and troops to his armies. This increased taxes in many areas outside France and maintained conscription even in times of peace