The villa was fenced off, although you could phone someone for access (we didn't, being on the move). However, there was another archaeological site, with no explanation except the above sign telling us not to excavate there.
(Editorial note: the French word for excavation is 'fouille', and one of my favourite bargain shops is 'La Foir Fouille', 'fouille' meaning 'rummage'. I like the idea of a scientific excavation being no more than a 'rummage'.)
Penetrating observation on the part of this former archaeology student divined that this was the ruins of a church, and that it was pretty old (oh, so talented...)
It is possible, of course, that the sarcophagi were a bit of a clue! There were a lot of them, and some pillar bases...So, Ben got 'to church' this Sunday anyway, even though I'd evily tempted him to go skiing instead ('the woman tempted me...' he excused himself feebly).
I like that heavy jewellery. I do feel sorry for the Visigoths, though. They were barbarian invaders who ousted the Romans and then decided to become civilised by adopting Christianity. Unfortunately, they were sold a dud, in the form of a heresy, so it's actually questionable whether they really became Christians or not. Very unfair on them, as they were just trying to fit in. They built some very impressive churches. Click on the link above to find out more about this one.