I don't know the recipe or ingredients, so bear with me.
I am leaving for Maine, my ancestral motherland

, on Thursday for eight days. I am leaving my home, two Collies and four cats in the capable care of my next-door neighbors (who, as luck would have it, have the same number of pets, and we often trade these duties).
I want to reward them for taking good care of the homestead over the Christmas holiday, so I am going to supply them with wine for their Christmas dinner. The lady neighbor is quite a cook and the whole family appreciates wine, but are not truly serious about it.
For example, I brought bottles of '01 MP Shiraz, '01 CSM Eroica, and Chambers Fine Tokay to Thanksgiving and they were very interested and having fun experimenting with these wines that they had never before experienced.
So, we've got 6 adults for Christmas dinner. I'll pick the non-entree matching wines, but am wondering what you would suggest pairing with Pork Loin with Madeira sauce? I was thinking "Melville PN", until she mentioned the sauce. Without knowing any further details, what do your instincts tell you for an appropriate wine pairing?
Thank you in advance.