Once a significant and independent estate, it was bought by the Duboscq family of Château Haut-Marbuzet in 1988 and the brand has since then been used to label the second wine of their production.

[1][2][3] The estate was named after Dennis MacCarthy (1719–1796), a member of the eldest branch of clan MacCarthy-Diarmuid-Reagh,[4] formerly established at Cloghan Castel, county Cork, Ireland.

It is believed that the MacCarthys were Jacobite Catholics who followed King James II Stuart to France in 1692,[4] after his defeat at the Battle of the Boyne.

[5] Among other noble Irishmen, like the Lynchs, the Clarkes and the Dillons, Dennis MacCarthy settled near Bordeaux, an active French port of the time, where he established his family.

Applied to Bordeaux, the broader movement of Irish exiles to Continental Europe known as Flight of the Wild Geese is called the "Flight of the Wine Geese" [6] as many of them left traces in the Médoc wine industry by creating estates which bore their names.