Winemaking Partnerships

A Concert of Old World and New World Riesling

Launched in 1999, Eroica is a labor of love for two of the world's great Riesling producers. One from the Old World, Dr. Loosen estate of Germany, and the other from the New World, Chateau Ste. Michelle of Washington state.

Winemaking Partnerships

Marchese Piero Antinori, the 25th Generation Winemaker

Col Solare, Italian for "shining hill", is the esteemed winemaking partnership on Red Mountain between two influential wine producers who are recognized leaders in their respective regions: Washington State's Chateau Ste. Michelle and the legendary Marchesi Antinori of Tuscany.

Tenet Wines

At Tenet Wines, we are convinced that Washington state is an exceptional terroir for Syrah and its Rhône brethren. A project between Chateau Ste. Michelle and the acclaimed Rhône winemaker Michel Gassier, with the assistance of Southern Rhône’s famous enology consultant, Philippe Cambie.

Eroica Wine Bottle

Partnership with Ernst Loosen

The Eroica partnership brings together two of the world’s great Riesling producers. Eroica combines the Old World perspective of German winemaker Ernst Loosen with Chateau Ste. Michelle’s New World philosophy and Columbia Valley grapes. The award-winning Eroica Riesling, Eroica Single Berry Select, and Eroica Gold are available for tastings in our Visitor Center. For more information about the Eroica partnership, visit

Col Solare Wine Bottles
Col Solare

Partnership with Marchesi Piero Antinori

Col Solare is an alliance with Tuscany’s Marchesi Piero Antinori that brings together the very best Washington fruit and 26 generations of Antinori family winemaking experience to produce a world-class Cabernet Sauvignon-based red wine. Visitors of Chateau Ste. Michelle can enjoy tasting three vintages of the ultra-luxury Cabernet Sauvignon-based blend in our exclusive Col Solare Bottega. For more information about the Col Solare partnership, or the winery on Red Mountain, visit

Tenet Wine Bottles
Tenet Wines

Partnership with Michel Gassier and Philippe Cambie

Tenet Wines establishes a parallel between Syrah’s cradle and most renowned region, the Rhône Valley, and its tremendous potential on Washington's basaltic slopes. The goal is to break the old paradigms and have people look at Syrah and other Rhône varieties in a new light, leaving old prejudices behind. Together, we share the strong belief (or “tenet”) that Syrah and its Rhône brethren can thrive in the Columbia Valley. The Pundit Syrah and Tenet GSM are available in our Visitor Center. For more information about the Tenet Wines partnership, visit