to enter the Knights Templar, but there is no evidence that Gerhard made use of this. References O. Schreiber, "Die Personal- und Amtsdaten der Hochmeister des Deutschen Ritterordens", Oberländische Geschichtsblätter 15, 1913. 1240s deaths People from former German states in Rhineland-Palatinate Grand Masters of the Teutonic Order Christians of the Prussian Crusade