The Dowager Countess may not know the answer to this question:
But you and I will when we are poppin' bottles of Bordeaux Clarets and Blancs, French blends imported to America by the British aristocracy in the 1900s. The recreated wines will be produced "from grapes grown on the same vines and from the same soil as the era depicted in Downton Abbey."
MOST importantly, this may have been the very hooch Mary got tipsy on before doing everything-but with Kemal "Hot Lips" Pamuk. Hollaaaaa.