Note 38 — Chapter IV · THE COMING OF THE MONGOLS
Reading edition
Both Von Hammer-Purgstall (Geschichte der Goldenen Horde) and Howorth allude to Poppon as Grand Master of the Teutonic Order, a post held at that date by Konrad of Thuringen; also both include him among the slain, though the former has a note to the effect that this could not have been Poppon “of Osterino,” who died much later. Poppon of Osterna was at this date Provincial or Land-master in Prussia, and lived to be elected Grand Master in 1253.