Carlrichard Brühl (25 February 1925 – 25 January 1997) was a German historian of medieval history and philatelist who, in 1986, was awarded the Crawford Medal by the Royal Philatelic Society London for his Geschichte der Philatelie. His main research focus in historical science was the Frankish Empire and the subsequent realms of France, Italy and Germany. Brühl wrote numerous studies on the economic basis of medieval kingship in a comparative European perspective, on the sites where rulers exercised their power, and on the travel routes of medieval rulers. Source: Wikipedia (en)