The law secularized nearly 70 ecclesiastical states and abolished 45 imperial cities to compensate numerous German princes for territories to the west of the Rhine that had been annexed by France as a result of the French Revolutionary Wars.
However the emperor made a formal reservation in respect of the reallocation of votes within the Reichstag, as the balance between Protestant and Catholic states had been shifted heavily in the former's favour.
Following the Reichsdeputationshauptschluss, altogether 112 imperial states, totaling 10,000 km2 (3,900 sq mi) in area, and a population of over three million people changed hands.
Of the imperial cities, only Augsburg, Bremen, Frankfurt am Main, Hamburg, Lübeck, and Nuremberg survived as independent entities.
[5] The principle that allies of Napoleon could expect to make gains in both territory and status was also established, and was to be repeated on a number of occasions, above all in 1806 when, at the time of the establishment of the Confederation of the Rhine, over 80 small and mid-size secular states (such as principalities and imperial counties) were mediatized and annexed to some of the member states of the new Confederation.