On the "Green Island" (Eire), the first attempts at viticulture were allegedly made by monastic orders as early as the 5th century. In the history of Bordeaux some Irish have played an important role. These were, among others, the Barton and Lynch families, who founded the current vineyards in Pauillac or their predecessors Château Langoa-Barton, Château Léoville-Barton and Château Lynch-Bages. Today, they cultivate around one hundred hectares of vineyards. The vineyards are mainly located in the southwest of the country in County Cork (there is no viticulture in the northern part of the island, which belongs to Great Britain). One of the vineyards is "Thomas Walk Vineyard" near Kinsale. From the grape variety Rondo (formerly called Amurensis Walk), red and rosé wines and also a bottle-fermented sparkling wine are produced by means of ecological cultivation. In cool Ireland, however, mainly white wine varieties such as Müller-Thurgau and Reichensteiner are cultivated. Other producers are Blackwater Valley Vineyard, Bunratty Winery, Longueville House and West Waterford Vineyard.