Original sentence: In 1193, Pope Celestine III urged two religious orders of Knights, the Livonian Brothers of the Sword (the branch of the Knights Templar) and the Teutonic Order, to invade and subjugate the heathens which included the Old Prussians, the Lithuanians and other tribes inhabiting Estonia, Latvia and East Prussia
Edited sentence: In 1193, Pope Celestine III urged to a crusade against the heathens which included the Old Prussians, the Lithuanians and other tribes inhabiting Estonia, Latvia and East Prussia