Is it likely (I'm rather sure it's not impossible at all) that instead of being conquered by Sweden Finland became German Crusader state similar to Livonia or Prussia under Sword Brothers and Teutonic Order? Say Sweden is weakened by civil war or even broke into two warring states, so is unable to conquer Finland. On the other hand Finnish tribes are raiding Swedish lands from time to time, and to solve that problem one of rulers call for Knightly Order to subdue pagans. German knights have arrived and gradually conquered Southern Finland estabilishing their own state, which some time later became land of northernmost branch of Teutonic Order. What do you think about such scenario?