Lothair’s death led to the partitioning of his lands in 869.

Evidence

In 869, when Lothair died undivorced, his uncles did indeed partition his lands, and all that remains of Lotharingia today is the name of Lorraine. For more than a thousand years, indeed until 1945, Lothair’s Middle Kingdom was bitterly fought over by the successors of the wicked uncles, France and Germany. — Neil MacGregor, A History of the World in 100 Objects, 851

Categorization

• corroborated: 2 independent passages support this claim — Neil MacGregor, A History of the World in 100 Objects, 851