Teutonic Order of Knights (or simply "Teutonic Order") were Crusaders sent by the Holy Roman Empire to Christianize pagan or Orthodox factions.After loses against Muslims and Hungary,they came to the Baltic area.They used to war with many. Lithuania and Novgorod were their primary goals.Lithuania was a pagan country, believing gods from the Baltic mythology (Perkunas,Dievas,...).Republic of Novgorod (ie. Novgorod) was an Orthodox country.The Order's mission was to convert both to Catholic states.Their parent, Holy Roman Empire, helped them in war against Lithuania.The Order, besides the Non-Catholic states, was fighting even Christian states - such as Poland.
Long live Knights of Christ!