document to strengthen the legal basis of their secular possessions. Bull of Rieti In 1234, Pope Gregory IX issued the Golden Bull of Rieti (Pietati proximum), that presents the written authorization of all previous verbal consent given in August and September 1230 after the Treaty of Kruszwica and confirms all prior agreements. It asserts the Teutonic Order's domination of the Chelmno land east of the lower Vistula River and of any other territory conquered by Teutonic Order in Prussia ("to eternal and absolute ownership"). These territories are not to become a fief of any other secular or ecclesiastical power. The Roman Curia had already announced that the Order is to answer exclusively to the papal sovereign, nevertheless, von Salza had insisted on written promulgation. The bull was re-confirmed by Pope Alexander IV in 1257. See also Prussian Crusade References Sources External links Text of the Golden Bull of Rimini Goldene Bulle von Rimini Entry at the Regsta Imperii 1220s in law 1220s in the Holy Roman Empire 1226 in Europe 13th century in Poland Rimini Prussian law Legal history of the Holy Roman Empire Rimini State of the Teutonic Order Frederick II, Holy Roman Emperor