booking in advance in Italy sometimes ends with "sorry, in advance only if you stay for more than one night", but there will allways be a solution; if it's not too late in the evening and if there is no free place you can continue some more kilometers (5 - 10) for the next village, they will help you and phone for you to get the accomodation.
I think it's Lyon (not Laon)?
I don't know the "Via Francigena" and I don't know whether you are really fixed to it and whether you like to climb more passes:
- The Grand St Bernard pass is not my favorite one because it's too crowded and there is a long snow gallery with lots of cars passing near by, but there is a little nice hotel in the first village after the pass (Bourg-St-Rhemy, still above the tunnel). In earlier times there were only a few houses on either side of the road for the dealers and their luggage animals. Now the road passes by and the village is very calm. You can google for it with the keywords "suisse", "bourg" and "rhemy". The name is Hotel Suisse, the adress is Via Roma 21, Tel: (0039) 0165780906. In Aosta there are surely more hotels...
- my favorite passes are the Iseran, Galibier, Izoard, Cayolle, Agnel and the tripple pass Esischie/Morti/Valclavera and if I would be lucky anough to travel that region (from France to Italy) I would prefer the Agnel (Agnello).
You can look at my homepage
for pictures, maps, profiles, accomodations and road-descriptions.
Bilder: the list in the left frame refers to picture collections of the respective mountain roads
Unterkunft: the list in the left frame refers to overnight accomodations in these areas
Inhalt/mail: using the reference (an mich) in the right frame you can send an eMail to my address
Karten: using the map-collection in the left frame more detailed maps can be loaded in the right frame
Wegbeschreibung/Profil: the list in the left frame refers to single cycling routes. In the right frame route descriptions and a mountain profile are presented. If you like to get such a description or further information in English don't hesitate to ask for it