Title Letters to the Prussian King Series Benckendorff. Alopeus. Shuvalovs Fonds BENKENDORFI. ALOPEUSES. Shuvalov. Benckendorff Alexander Konstantinovich, count, ambassador in Denmark, England. 18 ?? - 1916. Benckendorff Konstantin, father of AK Benkendorf, military agent in Berlin, envoy at the Württemberg court. 1817-1858. Benckendo Display format Full description RUSMARC Collections Russia – Germany: from the history of relationship → The Russian Empire and the German States → From the proclamation of the Russian Empire to the end of the reign of Catherine the Great. 1721-1796 Russia – Germany: from the history of relationship → The Russian Empire and the German States → From the reign of Paul I to the proclamation of the German Empire. 1796-1871