As early as 953 Bruno, archbishop of Cologne, received the ducal authority over Lothringen. This gave him the power to hold local diets and to summon both the bishops and secular nobles to attend them. The Gelnhausen decree, so named because it was published in a diet held at Gelnhausen, is important because it contains an official account (1) of the trial of Henry the Lion, and (2) of the partition of the duchy of Saxony. The archbishop of Cologne now receives the ducal authority over a part of the duchy of Saxony. There is here a good illustration of the policy which Frederick I followed of weakening the great duchies by dividing them. In the name of the holy and undivided Trinity. Frederick, by divine mercy emperor of the Romans, Augustus.... Know all faithful subjects of the empire, both present and future, that Henry, former duke of Bavaria and Westphalia, has oppressed the churches of God and the nobles of the empire by seizing their lands and violating their rights, has refused to obey our summons to present himself before us and has therefore incurred the ban, and even after that has continued to injure the churches and nobles. Now therefore on account of the injuries which he has inflicted upon these persons, and on account of the contempt which he has so often shown to us, and especially on account of his violation of feudal law, in that he refused to obey the three summonses to present himself before us, he has been judged contumacious and by the unanimous sentence of the princes in the diet held at Würzburg has been deprived of the duchies of Bavaria, Westphalia, and Engria [that is, Bavaria and Saxony] and of all the fiefs which he held of the empire, and these territories have been restored to our control. Now by the advice of the princes we have divided the duchy of Westphalia and Engria [Saxony] into two parts and have conferred that part which is included in the dioceses of Cologne and Paderborn upon our beloved prince, Philip, archbishop of Cologne, because of his conspicuous merits, and of his labors and expenditures for the crown. We have given and granted this territory to the church of Cologne with the counties, advocates, rights of safe-conduct, domains, farms, fiefs, ministerials, serfs, and all other things which belong to that duchy; and we have solemnly invested the aforesaid Philip by the banner [flag] of the empire with that portion of the duchy which is given to his church. This was done by the decision of all the princes of the diet, and with the public consent of our relative, duke Bernard, to whom we have given the other part of the duchy of Westphalia and Engria.... 113. Papal Election Decree of Alexander III, 1179. Watterich, Pont. Rom. Vitæ, II, pp. 644 f; Doeberl, IV, no. 49.