The Duchy of Holstein was established by a Scandinavian monarch under what union?
Duchy of Holstein The Duchy of Holstein (German: "Herzogtum Holstein" , Danish: "Hertugdømmet Holsten" ) was the northernmost state of the Holy Roman Empire, located in the present German state of Schleswig-Holstein. It was established when King Christian I of Denmark had his County of Holstein-Rendsburg elevated to a duchy by Emperor Frederick III in 1474. Holstein was ruled jointly with the Duchy of Schleswig by members of the Danish House of Oldenburg for its entire existence.
Lübeck law The Lübeck law (German: "Lübisches (Stadt)Recht" ) was the constitution of a municipal form of government developed at Lübeck, now in Schleswig-Holstein, after it was made a free city in 1226. The law provides for self-government. It replaced the personal rule of tribal monarchs descending from ancient times or the rule of the regional dukes and kings that had been established by Charlemagne. The latter held all of his aristocratic vassals personally responsible for the defence, health and welfare of the tribesmen settled on their estates, including the towns. The Lübeck Law in theory made the cities to which it applied independent of royalty.