then in 1611 during the Kalmar War, when villages were raized and plundered, churches were destroyed, and the population was assaulted. After this incident the Jamts were severely punished by the Danish king, who confiscated much land from the Jamts for having sworn the Swedish king an oath of allegiance, incidentally before the misconducts started. These conflicts continued, Jämtland was occupied yet again in 1644 during the Hannibal War, though the Swedes were quickly driven out by Norwegians and locals. Sweden did, however, win that war in the south and received Jämtland as a part of the Treaty of Brömsebro in 1645. After this Denmark-Norway tried to regain the province, first in the Dano Swedish war of 1657 where the Norwegians were hailed as liberators. Then for a longer period in 1677 with the conquest of Jemtland. The Jamts conducted snapphane activities towards the Swedish army and during this time a Jamt from Lockne, the first known Jamtish poet, wrote a scurrilous song that was sung throughout the province during the war. The last segment of the song was the most derisive one (direct English translation to the right): The conquest failed and Jämtland was once again in Swedish hands, a Swedification process begun. The Diocese of Härnösand was instituted at the Swedish coast, schools were established (to direct the Jamts away from Trondheim) etc. though the population didn't receive Swedish citizenship until 1699, the Jamts were thus the last people from an acquired territory in Sweden to become Swedish. The Jamtish people maintained some self-governance. The Jamtamót had been transformed into a Danish landsting in the early 16th century. Even though it was banned in the end of the very same century it continued to be held by the people, in secret. After the transition to Sweden some parts were transmitted into a Swedish landsjämnadsting. Sweden's intentions in the province were first and foremost focused on defense, which led to an enormous burden for the Jamtish farmers to bear. The Jamts managed to enforce a treaty in 1688 which stated that Jamts were under no circumstances obligated to defend anything but their own province. This treaty was eventually broken by king Charles XII and Jamts participated in Carl Gustaf Armfeldt's 1718 Norwegian campaign during the Great Northern War. The campaign was unsuccessful and when Charles XII died in southern Norway Armfeldt marched back to Jämtland. On New Year's Eve