Röntgen's birthplace in Lennep 1845.

A GREAT RESEARCHER IS BORN. On the 27th of March 1845 at 4 pm Wilhelm Conrad Röntgen sees the light of day in Lennep. As the single child of the wealthy cloth merchant Friedrich Conrad Röntgen and his wife Charlotte Constanze he is raised in the Dutch City of Apeldoorn, where his family moves three years after his birth.