Domaine des Trois Demoiselles is a private label belonging to Domaine Jean-Marie Penet so named after the three daughters of Jean-Marie Penet. The youngest of the three, Anne-Sophie, a six generation family member, took over the reins in 1998 aided by her husband Frédéric Meurgey, a Bourguignon.

The 44-hectare domaine, planted with Sauvignon Blanc & Gamay, is situated in the village of Oisly at the heart of the Sauvignon de Touraine appellation, on gently sloping sandy-clay soils halfway between the river Loire and its tributary the Cher.

A 'lutte raisoneé' approach to viticulture is practised. A new cuverie (winery) was built in 2004, adding two new swiss Bucher pneumatic presses, a row of gleaming stainless-steel vats together with the rolls-royce of filters, a cross-flow. In 2006 40% of the Sauvignon Blanc saw twelve hours of skin maceration. A 'Stelvin' screwcap closure was introduced with the 2006 vintage.

Frederic & Anne-Sophie Meurgy have continued the family tradition and remained true to the label by bearing three daughters: Philippin, Andrea, & Albane.