Finding a specific wine

[paolotx]

While traveling in Italy last year, I picked up a couple of very nice bottles in Montalcino and Montelpulciano from our concierges. Are some wines not produced for the public, or can vineyards put different labels on the wine? One bottle was a Brunello di Montalcino. The label was a picture of our hotel, Castello di Velona. How might I find the vineyard of the bottle?

Thanks for any help.