Lothair I was a 9th-century Emperor of the Carolingian Empire and King of Italy and Middle Francia.
Lothair I in the Gospels of Lothair, c. 849–851, now located in the Bibliothèque nationale de France
Denier of Lothair I, struck in Dorestad (Middle Francia) after 850
Medallion presumed to be of Lothair, from the binding of the Lothair Psalter in the British Library
13th-century stained glass depiction of Lothair, Strasbourg Cathedral
The Treaty of Verdun, agreed to on 10 August 843, ended the Carolingian civil war and divided the Carolingian Empire between Lothair I, Louis II and Charles II, the surviving sons of the emperor Louis
Lothair I
…and in June 842 the brothers met on an island in the Saône. They agreed to an arrangement which developed, after much difficulty and delay, into the Treaty of Verdun, signed in August 843. By this, Lothair received the imperial title as well as northern Italy and a long stretch of territory from the North Sea to the…
Emperor Louis I (right) blessing the division of the Frankish Empire in 843 into West Francia, Middle Francia, and East Francia; from the Grandes Chroniques de France, 15th century
Treaty of Verdun Memorial at Fontenoy-en-Puisaye