Kantianism
Kantianism is the philosophy of Immanuel Kant, a German philosopher born in Königsberg, Prussia (now Kaliningrad, Russia). The term "Kantianism" or "Kantian" is sometimes also used to describe contemporary positions in philosophy of mind, epistemology, and ethics.
Martin Knutzen
It was Knutzen who introduced Kant to the scientific literature of the era and especially the works of Isaac Newton, who had such a powerful influence on the development of Kant's own philosophy. Knutzen, however, did not consider Kant to be one of his best students, and favoured (1722–1786) or Johann Friedrich Weitenkampf (1726–1758). Moreover, the name of Kant never appeared in the profuse correspondence between Knutzen and Leonhard Euler, which is evidence of in what little esteem Knutzen held Kant.