Facts: - issue: louis d. 853 -rrb- hiltrude berta gisela rotrude ii lothair ii charles of provence carloman -lrb- - title: emperor of the romans and king of italy - coronation: by pope paschal i : 5 april 823 , rome his father : 817 , aachen ; by - reign: as of italy : 818 -- 855 as king of middle emperor francia : 843 -- 855 : 817 -- 855 ; as king - successor: louis ii - mother: ermengarde of hesbaye - predecessor: louis the pious - death date: 29 september 855 795 - father: louis the pious - birth date: 795 - name: lothair i - image: lothar i.jpg - death place: prum - queen: ermengarde of tours Based on these bullet points, write a short biography describing the life of lothair i .
Answer:
lothair i or lothar i -lrb- german : '' lothar '' , french : '' lothaire '' , italian : '' lotario '' , dutch : '' lotharius '' -rrb- -lrb- 795 -- 29 september 855 -rrb- was the holy roman emperor -lrb- 817 -- 855 , co-ruling with his father until 840 -rrb- , and the king of bavaria -lrb- 815 -- 817 -rrb- , italy -lrb- 818 -- 855 -rrb- and middle francia -lrb- 840 -- 855 -rrb- .lothair was the eldest son of the carolingian emperor louis the pious and his wife ermengarde of hesbaye , daughter of ingerman the duke of hesbaye .on several occasions , lothair led his full-brothers pippin i of aquitaine and louis the german in revolt against their father to protest against attempts to make their half-brother charles the bald a co-heir to the frankish domains .upon the father 's death , charles and louis joined forces against lothair in a three-year civil war -lrb- 840 -- 843 -rrb- .the struggles between the brothers led directly to the breakup of the frankish empire assembled by their grandfather charlemagne , and laid the foundation for the development of modern france and germany .