As a result of the crusades (mostly with the second crusade led by Birger Jarl) and the colonisation of some Finnish coastal areas with Christian Swedish population during the Middle Ages, including the old capital Turku, Finland gradually became part of the kingdom of Sweden and the sphere of influence of the Catholic Church. Due to the Swedish conquest, the Finnish upper class lost its position and lands to the new Swedish and German nobility and to the Catholic Church. In Sweden even in the 17th and 18th centuries, it was clear that Finland was a conquered country and its inhabitants could be treated arbitrarily. Swedish kings visited Finland rarely and in Swedish contemporary texts Finns were portrayed to be primitive and their language inferior.