A supermarket surprise

This is a bottle of Rose d'Anjou from one of the big 2 supermarkets. I have seen it before and not given it a thought. It was when I found out that Rose d'Anjou is the main appellation in which you find the Grolleau grape that I began to take notice. I know I had had Cabernet d'Anjou before and as its name implied, that Loire rose was made from Cabernet (Sauvignon or Franc). I wasn't sure which rose (Cabernet or Grolleau) they had in the supermarket, but was delighted to find this on the shelves. Who says the big supermarkets (and I don't count Marks & Spencer amongst them) are unadventurous? The Amorghiano red from Rhodes was from another one. In the supermarket above, I also found a Gros Manseng Sauvignon Blanc blend too!