the Livonian Order in 1343, the severely weakened Denmark also lost Narva in 1345. Thereupon king Valdemar IV in 1346 sold the Duchy of Estonia to the Teutonic knights for 19,000 silver marks (4 tons of silver). Another 6,000 marks was paid to the Margrave of Brandenburg. Another consequence of Saint George's Night Uprising was the disappearance of the remnants of pre-Christian Estonian nobility in North-Estonia. Rebellion in Ösel On 24 July 1344, one day before St. Jacob's Day, Oeselians in Ösel (the islands of Saaremaa and Muhumaa) renounced Christianity, killed all the Germans, and drowned the priests in the sea. On the same day they assembled around the Castle of the Livonian Order in Pöide. The castle surrendered after an eight-day siege. The vogt of the castle along with his garrison of Livonian Knights, as well as all the other Germans in the castle, were promised free passage. Regardless, all the defenders of the castle were killed after they had come through the gates. Saaremaa and Muhumaa remained in Estonian hands until the winter. As soon as the sea between the islands and the continent was frozen, the Master of the Order with fresh reinforcements from Prussia crossed the sea and invaded Saaremaa. The German army looted and burned all the villages they came across and finally laid siege on Purtsa Fortress, one of the largest Estonian strongholds on the island. In the winter of 1344, one day before Shrove Tuesday, the knights penetrated the stronghold after tearing down one of the battlements. According to Wigand of Marburg, 2,000 people were killed in the fortress. Germans lost 500 killed. The Oeselian king Vesse was captured, tortured, and then executed. Nevertheless, Saaremaa remained free and staunchly anti-Christian as the German army was forced to cross back to the continent before the sea ice melted in the spring and the roads became impenetrable for the returning reinforcements from Prussia. In the winter of 1345 the Christian army returned to Saaremaa where it laid waste to the northern districts by looting and burning for eight days. Eventually Oeselians asked for peace. The two sides reached an agreement and the army of the Livonian Order left Saaremaa after the Oeselians had reluctantly agreed to giving hostages and tearing down the fortress of Maasilinna Castle. The rebellion in Ösel had lasted for two years. With the conditional surrender of Ösel Saint George's Night Uprising