Château Peyros produces Tannat-based wines from Madiran, a region in the Pyrenées of South West France known for structured, age-worthy reds. The winery's flagship Greenwich 43N and Vieilles Vignes both blend Tannat with Cabernet Franc, a pairing that brings the region's signature power into focus. Tannat, native to Madiran, delivers dark fruit and firm tannins; the addition of Cabernet Franc adds complexity and refinement. The Héritage bottling introduces Cabernet Sauvignon to the blend, broadening the aromatic profile. Decanter, Wine Enthusiast, and Wine Spectator have all rated these wines, reflecting their standing among serious collectors of South West French reds.