z , ▁but ▁his ▁brother ▁Louis ▁the ▁German ▁opposed ▁his ▁claim ▁and ▁in ▁ 8 7 0 ▁the ▁Tre aty ▁of ▁M ers en ▁divided ▁L oth aring ia ▁between ▁the ▁two ▁brothers ▁and ▁subsequently ▁their ▁sons . ▁In ▁ 8 8 0 , ▁the ▁Tre aty ▁of ▁Rib em ont ▁gave ▁the ▁whole ▁of ▁L oth aring ia ▁to ▁Louis ▁the ▁Young er , ▁son ▁of ▁Louis ▁the ▁German . ▁ ▁Charles ▁the ▁Bald ▁( 8 6 9 – 8 7 0 ) ▁Louis ▁the ▁Young er ▁( 8 8 0 – 8 8 2 ) ▁Charles ▁the ▁F at ▁( 8 8 2 – 8 8 7 ) ▁Arn ulf ▁of ▁Car inth ia ▁( 8 8 7 – 8 9 5 ) ▁Zw ent ib old ▁( 8 9 5 – 9 0 0 ) ▁Louis ▁the ▁Child ▁( 9 0 0 – 9 1 1 ) ▁Charles ▁the ▁Simple ▁( 9 1 1 – 9 2 3 ) ▁ ▁In ▁ 9 2 5 , ▁L oth aring ia ▁was ▁sub sum ed ▁into ▁East ▁Francia . ▁ ▁D uk es ▁of ▁Lor raine ▁Geb hard ▁( 9 0 3 – 9 1 0 ) ▁Regin ar ▁( 9 1 0 – 9 1 5 ) ▁Gilbert ▁( 9 1 5 – 9 3 9 ) ▁Henry ▁( 9 3 9 – 9 4 0 ) ▁Otto ▁( 9 4 2 – 9 4 4 ) ▁Con rad ▁( 9 4 4 – 9 5 3 ) ▁Bruno ,