Wonderful Gift

[BasketBzz]

In reading a couple of the other postings in this category- I saw that posters also added additional information that was on the label. So....for the wines I just listed 3 of them say "Saint-Emilion Grand Cru" and the 4th Chateau des Pelerins just has Pomerol below it.
Again I am new at this--- I thought that Saint-Emilion and Pomerol just told you about the region of France they came from. Is the Grand Cru part a further designation of location or quality?
Also, it seems from the other Bordeaux postings that I should probably hold these at least/ minimum of 5 years from the dates on the labels...is that correct?