They were ennobled by King Louis XIV on 20 November 1666 when Pierre-Paul Riquet, the engineer responsible for the construction of the Canal du Midi, was created Baron of Bonrepos (French: Baron de Bonrepos) in the Haute-Garonne department in southwestern France.

As Pierre-Paul II died unmarried without issue, he transferred, by deed of cession, the County of Caraman to his nephew, Victor François de Riquet de Caraman (the eldest son of his late brother), in 1722.

[4] During the French Revolution, the property of the Counts of Caraman was confiscated and the Château de Roissy was pillaged and destroyed in 1793.

The title was confirmed, and elevated to Hereditary Count by King Louis XVIII by letters patent on 3 July 1818.

[1] The youngest son of the 3rd Count (and younger brother to the 1st Duke of Caraman), François-Joseph-Philippe de Riquet (1771–1843), became the 16th Prince of Chimay on 24 July 1804 following the death of his childless maternal uncle, Philippe Gabriel Maurice Joseph de Hénin-Liétard, 15th Prince of Chimay.