The Champagne Letters by Kate Macintosh

Reims, France, 1805: Barbe-Nicole Clicquot has just lost her beloved husband but is determined to pursue their dream of creating the premier champagne house in France, now named for her new identity as a widow: Veuve Clicquot. With the Russians poised to invade, competitors fighting for her customers, and the Napoleonic court politics complicating matters she must set herself apart quickly and permanently if she, and her business, are to survive.