What is "monluc"

Monluc, or Montluc, the name of a French family. It stemmed from the house of Lasseran-Mansencomme, which possessed the estate of Monluc in Agenais, and whose last heiress, Gersende, married a cadet from the House of Montesquiou. As a branch of the Montesquiou family, it rose to considerable power and prominence in the immediate entourage of the king of France during the 16th century, before all its male members died at war in the lapse of a single decade and the name disappeared in the early 17th century.