This is a short collection of documents from the reign of the German Emperor Otto I the Great. This collection includes: the Constitution of Frankfurt (951), Proceedings of the Augustan assembly (952), his coronation oath in Rome (962), the Agreement with Pope John XII (963), Proceedings of the Synod of Rome (964), Ecclesiastical Edict (967), Mandate concerning the enthronement of the archbishop of Magdeburg (970), and Proceedings of the meeting of Papiensis (971). This work includes both the English translation of these documents, but also the original medieval Latin text.