Jurij Slatkonja was a choirmaster for which State of the Holy Roman Empire?
Jurij Slatkonja Jurij Slatkonja (German: "Georg von Slatkonia" , also "Jurij Chrysippus," Slovenian: "Jurij Slatkonja"; 21 March 1456–26 April 1522) was a Carniolan choirmaster and the first residential Bishop of Vienna. He was also the first owner of an ex libris among the Slovenes. His crest contained a golden horse, from which comes his surname (Slovene "slat" [= "zlat"] 'golden' + "konj" 'horse').
Lordship of Rostock The Lordship or Principality of Rostock (German: "Herrschaft (Fürstentum) Rostock" ) was a state of the Holy Roman Empire in the 13th and early 14th centuries. It arose from the first partition of Mecklenburg after the death of Henry Borwin II in 1227. It was named after the castle and settlement of Rostock and held the territories of Kessin, Kröpelin, Doberan, Ribnitz, Marlow, Sülze and Tessin in the modern German "Bundesland" (Federal State) of Mecklenburg-Vorpommern. Later, in 1236 Gnoien and Kalen were added to the lordship's territory.