The story
Arnold Pannartz was, perhaps, a native of Prague, and Conrad Sweynheym of Eltville near Mainz. Gottfried Zedler believed (Gutenberg-Forschungen, 1901) that Sweynheym worked at Eltville with Johannes Gutenberg in 1461–1464. Whether Pannartz had been connected with Sweynheym in Germany is not known. It is certain that the two brought Gutenberg's invention, the mechanical movable-type printing press, to Italy. Pannartz died about 1476, Sweynheym in 1477.
From Wikipedia’s article on Arnold Pannartz and Konrad Sweynheim, shared under CC BY-SA 4.0.3
