 Livonia was by the 1550s largely Lutheran, traditionally ruled by the Brothers of the Sword knightly order.This put Poland and Lithuania on a collision course with Moscow and other regional powers, which had also attempted expansion in that area.Soon after the Treaty of Kraków of 1525, Albrecht (Albert) of Hohenzollern planned a Polish–Lithuanian fief in Livonia, seeking a dominant position for his brother Wilhelm, the Archbishop of Riga.