The present contribute aims to reconstruct, using the methodology of intellectual history, the broad spectrum of metaphysical doctrines that Kant could know during the years of the formation of his philosophy. The first part deals with the teaching of metaphysics in K\uf6nigsberg from 1703 to 1770. The second part examines the main characteristics of the metaphysics in the various handbooks, which were taught at the Albertina, in order to have an exhaustive overview of all metaphysical positions
