Saint-Béat is a former commune in the Haute-Garonne department in southwestern France. On 1 January 2019, it was merged into the ne…Saint-Béat is a former commune in the Haute-Garonne department in southwestern France. On 1 January 2019, it was merged into the new commune Saint-Béat-Lez. Saint-Béat is renowned for its marble quarries, which have been in operation since Roman times.