| Lothair | |
| Father: | Charles the Bald |
Lothair the Lame (French: Lothaire le Boiteux, c. 848 – 865) was a French prince, the third son and fourth child of Charles the Bald and Ermentrude of Orléans. As he was born disabled, his parents sent him away to a monastery early in life. In 861, he became a monk. In his last years he was abbot of Montier-en-Der and Saint-Germain of Auxerre, where he died in 865 at the age of 17 or 18.