were expelled by the Hungarian King Andrew II though. Thus, in turn for the Order's service, Grand Master Herman of Salza wanted to have its rights documented beforehand, by a deal with Konrad that was to be confirmed by the Holy Roman Emperor and the Roman Curia. Emperor Frederick II issued in March 1226 the Golden Bull of Rimini, stating that: "...our trusty Brother Herman, the worthy Master of the Sacred House of the Hospital of St. Mary of the Germans in Jerusalem [i.e., the Teutonic Order] has explained ... that our devoted Konrad (Chünradus), Duke of Masovia and of Kuyavia (Cuiaviae), has promised and undertaken to provide to him and to his brethren from that land, which is called the Chelmło Land (terra quae vocatur Culmen), and in that other land, that is to say, between his borderland (marchiam) and the territories of the Prussians (confinia Prutenorum), that they may thus indeed take up the task and readily embark upon the invasion and obtaining of the land of Prussia (terram Prusciae) for the honor and glory of the true God. "We therefore... especially because the land itself is held under the sole rule of the Empire (sub monarchia imperii), trusting also in the judgment (prudentia) of the same Master, because he is a man mighty both in deed and word and through his own and his brethren’s perseverance is mightily undertaking and manfully carrying out the conquest of that land... even though many, vainly besought with numerous exertions in this business, gave up (defecerunt) just when they seemed about to set forth, grant the land of Prussia to the same Master along with the forces of his order and with all those who think to invade [it]..." So far, the Knights were not convinced to take the trouble of fighting the Prussians. On the advice of the first Prussian bishop, Christian of Oliva, Konrad instead founded the Loyal Order of Dobrzyń in 1228. He then called for another Prussian Crusade, and was again defeated. In view of an imminent Prussian invasion, Konrad supposedly signed the Treaty of Kruszwica in 1230, according to which he granted Chełmno Land to the Teutonic Knights and the Order of Dobrzyń. By this donation disclaiming any enfeoffment, Konrad established the nucleus of the State of the Teutonic Order. However the document does not exist and it is believed that it was never signed and