Chateau Siran is one of Margaux’s oldest estates (1428) and has been owned and managed by seven generations of the Miailhe family since 1858. The Saint-Jacques cuvee is sourced from an estate-owned 9 hectare plot which immediately borders the 24 hectares of Margaux vines used to make Siran’s grand vin. While outside the Margaux appellation, this adjacent, complex terroir produces rich and well-structured wines from clay soils formed by centuries of alluvial deposits from the Garonne River that have covered over the underlying gravel.