Grand Noir de la Calmette (or simply Grand noir) is a red teinturier grape variety that is a crossing of Petit Bouschet and Aramon noir created in 1855 by French grape breeder Henri Bouschet at his vineyard in Mauguio in the Hérault department. The grape was named after the breeding station Domaine de la Calmette. As a teinturier, Grand noir is often used to add color to wines that it is blended into but is paler than other choices such as Alicante Bouschet. The vine tends to bud late and has a high productivity but with some susceptibility to the viticultural hazard of powdery mildew. .
https://en.wikipedia.org/wiki/Grand_Noir_de_la_Calmette