István Szamosközy, latinised as Stephanus Zamosius (1565–1612) was a Hungarian humanist and historian.
[1] His father moved there from the land between the Szamos and Tisza rivers, the family's place of origin.
After his parents' premature death, he was taken care of by László Sombory who sent him as his son's, Sándor's companion to the University of Padua.
Zamosius's work as a historian started in 1587 and was heavily influenced by classical writers and humanism, exposed to him in his fatherland, a Protestant center, and Italy.
Sándor Szilágyi published Zamosius's works in four volumes in Szamosközy történeti maradványai, Budapest 1876–1880.