 The Chronicle also linked the Crusade to a contest with the Orthodox Russians, making a point of the fact that the "Russian king" had now lost the conquered land.The so-called "Detmar Chronicle" of Lübeck from around 1340 confirmed the expedition with a short note that Birger Jarl submitted Finland under Swedish rule.Unlike the doubted First Swedish crusade, there seems to be little doubt that Sweden's effort to Christianize Finland reached a culmination in the middle of the 13th century.