 Charles the Bald claimed Lotharingia on Lothair's death and was crowned king in Metz, but his brother Louis the German opposed his claim and in 870 the Treaty of Mersen divided Lotharingia between the two brothers and subsequently their sons.In 880, the Treaty of Ribemont gave the whole of Lotharingia to Louis the Younger, son of Louis the German.In 925, Lotharingia was subsumed into East Francia.