Albert Hardenberg or Albertus Risaeus (c. 1510 in Rheeze near Hardenberg â 18 May 1574 in Emden) was a Reformed theologian and Protestant reformer, who was also active as a reformer in Cologne, Bremen and Emden.
From the age of seven, he was put in the school of the "Fratres vitae communis" in Groninghe. He decided at the age of 17 to become a priest and became a monk in the abbey of Aduard. In 1540, he was sent by his community as a student at the University of Louvain to take theology courses so that he could one day be able to become abbot of a monastery. There he obtained his degree of license, but he was quickly drawn into the movement of active reformers in the University of Louvain.