Lothair I Holy Roman Emperor
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Holy Roman Emperor
Notes
Lothair I (795?-855), Holy Roman emperor (840-55), and eldest son of Holy Roman Emperor Louis I,
the Pious, and grandson of Charlemagne. Lothair became coruler with his father in 817 and was
crowned by the pope six years later. He twice conspired with his brothers in revolts against
their father. In 839 Lothair received the eastern part of the empire in addition to Italy,
which he had received in 822. After the death of Louis I, Lothair attempted to assert his power
over his brothers, but he was defeated by them at Fontenoy, France, on June 25, 841. By the
Treaty of Verdun (843), the title of Holy Roman emperor was guaranteed to Lothair, together
with sovereignty over Italy, Bourgogne, Alsace, Lorraine, and the Low Countries. After having
divided his kingdom among his three sons, Lothair retired to a monastery. His second son,
sometimes called Lothair II, reigned from 855 to 869 over the kingdom of Lotharingia.
Exerpt from
"Lothair I," Microsoft� Encarta� Encyclopedia 99.
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