Dominic of Prussia
Dominic of Prussia (German: Dominikus von Preußen; Latin: Dominicus Prutenus) (1382–1461) was a Carthusian monk.
Born in Danzig (Gdańsk), Prussia, Dominic studied at the University of Krakow. To Dominic is attributed the practice of meditation during the recitation of the Hail Marys, which he called the "Life of Jesus Rosary". He died at St. Alban's Charterhouse near Trier.