Jarmers Tower

"The ruins of Jarmer's Tower, or Jarmers Tårn, was once a vital part of Copenhagen’s moat defenses and one of eleven towers connected by the city walls. Built in the early 1500s, Jarmers Tower was part of the city's medieval defenses, but many people walk by without knowing the story of its truly interesting namesake. The tower was named after Jaromar II, who made his mark in 1259 by breaching the wooden palisades that surrounded Copenhagen's fortification, so Jarmers Tower holds a significant place in Danish folklore. Jaromar attacked Copenhagen in support of the Archbishop of Lund in his conflict with Danish King Christoffer I. Today, when you invade Copenhagen, you can visit the plaza surrounding the excavation site, where Nørre Voldgade transitions into H.C. Andersens Boulevard. It’s, of course, named Jarmers Plads, after a 13th century invader of the city. "