Castel San Mauro is located on the Italian north-eastern hills embracing Gorizia, known as Collio. It extends over an area of 25 hectares of which 6.5 are with vines. The south-facing land, among the woods of Mount Sabotino and the meadows that slope down towards the Isonzo River, its type consisting of marl and sandstone (Ponca) are the conditions that favor the cultivation of the vine since ancient times. 

Castel San Mauro is the name of a military garrison owned in the 13th century by Baron Von Graben who came from Styria (now in Austria) to administer the farm in the Gorizia County. Natural transit artery for goods and people, the Isonzo valley for centuries saw the passage towards north of wagons filled with wine and fruit. From the mid Twentieth Century the farm belongs to the family of the current owner, Manuele Mauri. In 1958, the Grandfather Gilberto began renovating the old villa and the old vineyards.