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
Karl Alexander, 5th Prince of Thurn and Taxis Karl Alexander, 5th Prince of Thurn and Taxis Karl Alexander, 5th Prince of Thurn and Taxis, full German name: "Karl Alexander Fürst von Thurn und Taxis" (22 February 1770, Imperial City of Regensburg, Holy Roman Empire, 15 July 1827, Schloss Taxis, Dischingen, Kingdom of Württemberg) was the fifth Prince of Thurn and Taxis, head of the Thurn-und-Taxis-Post, and Head of the Princely House of Thurn and Taxis from 13 November 1805 until his death on 15 July 1827. With the death of his father on 13 November 1805, he became nominal "Generalpostmeister" of the Imperial Reichspost until the resignation of