Named after the Gromis family which owned the vineyard in the commune of La Morra throughout the 19th century, before acquired by the Gaja family. It is blended with fruit from another Gaja-owned vineyard in Serralunga.It is a 100% Nebbiolo varietal wine, with 12 months in barriques followed by 12 months in large oak casks. It is classified Barolo DOCG.