Baedeker to have three of his four sons − Hans, Ernst and Dietrich − beside him in the firm, as editors and writers. Karl Baedeker III, the fourth son, entered academia and rose to become a professor of physics at the University of Jena. He was killed in action at the Battle of Liège in August 1914. It was his son Karl Friedrich who revived Verlag Karl Baedeker after the Second World War. During his reign, which lasted over 50 years, Fritz produced 73 new "Baedekers", as they came to be known universally. The Baedeker travel guides became so popular that
Baedeker destruction of their headquarters in Leipzig, with total loss of the firm's archives, in the early hours of December 4, 1943 when Britain's Royal Air Force bombarded the city. See also Baedeker Blitz for Baedeker Raids. Hans was extremely proud of what the Baedeker clan had achieved and not one to give up trying to revive the firm. He received a loan from Allen & Unwin, the London publishing house, which represented Baedeker in Britain, and continued to do whatever he could to rejuvenate the firm at home. On July 1, 1927, Hans celebrated the centenary of its foundation by