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 Albrecht in Germany, and the fourth-richest in Europe. Karl Albrecht Karl Hans Albrecht (; 20 February 1920 – 16 July 2014) was a German entrepreneur who founded the discount supermarket chain Aldi with his brother Theo. He was for many years the richest person in Germany. In February 2014, he was ranked the 21st-richest person in the world by Hurun Report. Karl and Theo Albrecht were born and raised in a Catholic family in modest circumstances in Essen, Germany. Their father, Karl Sr, was employed as a miner and later as a baker's assistant. Their mother Anna, née Siepmann, had a