21. Which Danish King, who was also King of Norway and Sweden, failed to take Schleswig from the Holy Roman Empire and saw Copenhagen fall into economic turmoil when he took the throne in 1396?
From Quiz The History of Copenhagen
Answer:
Eric of Pomerania
Eric VII of Denmark, better known as Eric of Pomerania, was an ambitious king. He attempted to take many different provinces around Europe but almost always failed. Margaret I, who was monarch before Eric, nearly had Schleswig in Danish possession but when he took over, he abandoned her diplomacy for war. He did not take Schleswig and actually lost territory to the Holy Roman Empire.
Although he sent the Danish economy spiraling down, he managed to rebound by instituting tolls on ships called "sound dues". However, Eric had been steadily losing support from all classes of people in Denmark and Sweden and he was thrown out of Copenhagen in 1428.