Herederos Del Marques de Riscal

[mrdutton]

I think there may be no one here who is familiar with your particular wine, or if there is they have not yet read your post and replied to it.

So, the only other possible answer to your request is: pop that sucker and give it a try. If you don't want to do that, let it rest a while longer and then pop it and try it.

I do not have any good database information on Rioja. You could try: www.wine-searcher.com. That site will at least tell you if your wine is still selling and if it has any monetary value. You might also just try entering RIOJA into your search-engine and see what you get.