orbade farmers to trade goods outside of Denmark, with the result that they sailed directly to Germany to sell their goods, bypassing the town of Stege, which was starved of goods and revenue. In 1476, the town received confirmation of its historic rights and, in 1481, a further law forbade foreigners trading with farmers on Møn. This was reaffirmed by King Hans in 1507.
In 1510, the Lubeckers attacked Møn in retaliation for the trade sanctions, failing to take Stege but destroying the island's second largest town, Borre. The trade war continued, and in 1524Frederick I again felt the need to repeat the ban on trade on Møn anywhere except in the town of Stege. In 1533, Frederick died leading again to a dispute over the crown. The townspeople sided with the previously deposed Christian II, but the castle was in the hands of Christian III. As a result the castle was taken by deceit by townspeople and blown up. The four leaders were hanged, but the castle was not rebuilt. In 1538, Christian III once again repeated the trade ban, as the citizens of Stege still could not obtain sufficient food for the town.
At the start of the 16th century, around 2000 people lived in Stege. However, the herring fisheries were in decline and the town was taxed heavily to pay for continuing wars. Farmers began to sell goods to the harbour at Grønsund, and the island was again pledged against a debt. By 1582 Frederick II was obliged to cut taxes on the town and waive unpaid back taxes, as the town was effectively bankrupt. In 1583, trade with Germany was again banned. Christian IV granted land outside Stege to the town so that the inhabitants might grow food for themselves. In 1627, more land was granted.
The death of Christian IV in 1648 meant the end of the 30-year war, but his successor Frederick III commenced war against Sweden. Copenhagen was occupied and Swedes sought to invade Møn by walking across the ice from Zealand. This was prevented by the islanders,
