Domaine Pierre Usseglio Cuvee Mon Aieul made its debut in 1998. Most of the fruit comes from old vine, low yielding, Grenache that was planted in 1926. The vines come from 3 separate vineyards that are located in three different parts of the appellation. In the north, they have land in Guigasse, to the south they have vines in Les Serres and in the eastern portion of Chateauneuf du Pape they have vines in La Crau and <a class="featured_hover_container" href="http://www.thewinecellarinsider.com/rhone-wines-cote-rotie-hermitage-chateauneuf-du-pape/chateauneuf-du-pape-wine-producer-profiles/domaine-de-pignan-chateauneuf-du-pape-rhone-wine/" data-featured="http://cdn.thewinecellarinsider.com/wp-content/uploads/2014/01/domaine-pignan-150x150.jpg">Pignan</a> . The wine is usually produced from a blend of 95% old vine Grenache with 5% Syrah, although there are some vintages made with 100% Grenache.

The fruit is 100% destemmed. The wine is aged for 14-16 months in concrete tanks before bottling. However, the Syrah can be aged in used, French oak barrels. The production of Usseglio Mon Aieul is on average close to 1,600 cases per year.