Smallest of the Scandinavian countries, Denmark occupies the Jutland peninsula, a lowland area. The country also consists of several islands in the Baltic Sea; the two largest are Sjælland, the site of Copenhagen, and Fyn. The country was Christianized by Saint Ansgar and Harald Blaatand (Bluetooth)—the first Christian king—in the 10th century. Haralds son, Sweyn, conquered England in 1013. Sweyns son, Canute the Great, who reigned from 1014 to 1035, united Denmark, England, and Norway under his rule. In 1282, the nobles won the Great Charter, and Eric V was forced to share power with parliament and a Council of Nobles. Waldemar IV (1340–1375) restored Danish power, checked only by the Hanseatic League of north German cities allied with ports from Holland to Poland. Denmark, Norway, and Sweden united under the rule of his daughter Margrethe in 1397. But Sweden later achieved autonomy and in 1523, under Gustavus I, independence.