In the name of the holy and undivided Trinity. Frederick II, etc.... To you, most holy father, and to all your successors, and to the holy Roman church, who has been a true mother to us, with a humble heart and devout spirit we will always show all obedience, honor, and reverence, such as our ancestors, catholic kings and emperors, have shown your predecessors. And in order that our devotion to you may be shown to be greater than theirs we will pay you greater obedience, honor, and reverence than they did. Wishing therefore to abolish that abuse which some of our predecessors are said to have practised, we grant that the election of bishops may be free and canonical, so that he whom the whole chapter, or the majority of it, may elect may be established over the vacant church, provided there is nothing in the canon law against his election. Appeals in all ecclesiastical matters may freely be made to Rome, and no one shall attempt to interfere with them. We also will cease from that abuse which our predecessors practised, and will no longer seize the property [_spolia_] of deceased bishops or of vacant churches. Jurisdiction in all spiritual matters we yield to you and the other bishops, that those things which are Cæsar's may be rendered to Cæsar, and those which are God's to God. Moreover we will give our best help and aid in the destruction of heresy. We grant to the Roman church the free and undisturbed possession of all those lands which she has recovered from our predecessors who had despoiled her of them. If there are any such lands which she has not yet succeeded in recovering, we will, with all our strength, aid her to recover them; and if any of them shall fall into our hands we will freely restore them to her. In this we understand that the following lands are included: All the land from Radicofano to Ceperano, the march of Ancona, the duchy of Spoleto, the land of the countess Matilda, the county of Bertinoro, the exarchate of Ravenna, the Pentapolis, with the other lands lying adjacent to them, as described in many documents given by kings and emperors from the time of Ludwig, in which it is said that these lands shall belong forever to the jurisdiction and control of the Roman church. And whenever we shall be called by the pope to come and receive the imperial crown or to render any service to the church, we will receive from them _fodrum_ and other entertainment only as the pope shall give his consent. As a devoted son and catholic prince we will aid the Roman Catholic church to keep and defend the kingdom of Sicily and all other rights which she possesses.... 135. Promise of Frederick II to Resign Sicily After his Coronation as Emperor, 1216. Migne, 217, cols. 305 f; M. G. LL. folio, II, pp. 228 f; Böhmer-Ficker, no. 866; Doeberl, V, no. 13 b.