25. The pope shall immediately call together as large a council as possible, and with the cardinal bishops and other clergy who may be present, shall excommunicate all who break this peace. Afterward he shall do the same in a general council.
26. Many of the nobles of Rome and the great vassals of Campania shall also take oath to keep this peace.
27. The emperor and the princes of the empire will also take their oaths to keep this peace, the oath to be drawn up in writing and signed by the emperor and the princes.
28. If the pope should die first, the emperor and his son, king Henry, and the princes shall observe these terms of peace with his successors and all the cardinals and the whole Roman church, and with the Lombards and the king of Sicily and all the allies of the church. If the emperor should die first, the pope and the cardinals and the Roman church shall observe these terms with the empress Beatrice, and her son, king Henry, and with all the German people and their allies, as written above.
29. In the meantime the emperor shall not attack the land of St. Peter, whether held by the pope in person or by the king of Sicily or other vassals of the pope.
30. If the negotiations for peace are broken off by either side before they are completed, which God forbid, truce shall be kept for three months after the notification of withdrawal.
109. The Peace of Constance, January 25, 1183.
Muratori, IV, pp. 307 ff; M. G. LL. folio, II, pp. 175 ff; Doeberl, IV, no. 51 c.
See introductory note to [no. 108].
In the name of the holy and undivided Trinity. Frederick, by divine mercy emperor of the Romans, Augustus, and Henry VI, his son, king of the Romans, Augustus....