Example image of eyePlorer eyePlorer map for 'Regino of Prüm': Chronicle Altrip Speyer Benedictine Prüm List of Imperial abbeys Normans Abbot Danes (Germanic tribe) Lotharingia County of Hainaut Prince-Bishopric of Liège Richarius Ratbod (Archbishop of Trier) St. Maximin's Abbey, Trier Christianity Adalberon (Bishop of Laon) Bishop of Augsburg Bede Charles Martel Paul the Deacon Royal Frankish Annals Adalbert (Archbishop of Magdeburg) Bulgaria Preslav Boris I of Bulgaria List of Bulgarian monarchs Simeon I of Bulgaria Cosmas of Prague Collections of ancient canons Hatto I (Archbishop of Mainz) Auguste Molinier Wilhelm Wattenbach Monumenta Germaniae Historica Edmond de Coussemaker Jacques Paul Migne Patrologia Latina The English Historical Review 899 Canon Episcopi Hatto II 915 Nominoe Commandments of the Church Gurvand, Duke of Brittany Erispoe Weilburg Pasquitan, Duke of Brittany Wihomarc Gerolf of Holland