• General 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, Burgundy, 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."Lothair I," Microsoft (R) Encarta. CopChildren
  Ermengarde [Irmgard]* DUCHESS OF THE MOSELLE b: Abt 832 in Alsace-Lorraine
  Ermengarde MAASGAU b: 832 in Alsace Lorraine
  Louis II * EMPEROR OF ITALY
  Louis II Emperor Of The WEST b: Abt 832
  Charles KING OF PROVENCE
  Lothair II * King Of LORRAINE b: 827 in Alsace, Lorraine, France
  Rothilde Of LORRAINE b: Abt 815
  
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Details of  Lothaire I,  EMPEROR OF 's family with  Ermengarde,  COUNTESS OF   TOURS