Landskrona is a late medieval town located at the shores of Øresund, founded at the location of the former Danish fishing village Sønder Sæby in the province of Scania by king Erik VII of Pomerania early in the 15th century. In 1720 the town, like its province, became a formal part of Sweden. Around the Castle build by Danish king Christian III in 1549, Landskrona Citadel, a huge system of moats emerged over the centuries, also in the town's Swedish history. Today the Citadel is famous for its well preserved moat system, which includes parts of four moats. At the northern part of the Citadel, Sweden's second, and today oldest allotment area is located. Its port is based on a natural chute in the sandy sea floor, despite the lack of any nearby debouching river. The town is the seat of Landskrona Municipality. The town which in March 2013 celebrated its 600th birthday had close to 33,000 inhabitants at that time.