The Montlhéry family is a notable French noble lineage that traces its origins back to the medieval period. They are primarily associated with the region of Île-de-France, particularly the town of Montlhéry, which is known for its historical significance and the Montlhéry Castle. The family played a prominent role in the feudal system and had various members who served in significant positions within the French monarchy. Throughout history, the Montlhéry family has produced several influential figures, including military leaders and politicians. Their legacy is intertwined with the broader narrative of French nobility, contributing to the cultural and political landscape of France. The family's history reflects the complexities of noble life during the Middle Ages and beyond.