I'm currently downloading a 23MB sized zip file that is supposed to include the inside of a medievil room!
I found out about this site from Renderosity.com and it includes some great historical-looking buildings including houses.
You can also download this file because it is available as a free download! Just click here to go to the site to be able to download these objects!
I have to say that while these objects are big in size they are definitely worth it if you are looking for some medieval objects to go into your renders.
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While I'm still working on making my own 3d objects having more of them gives me a lot more to be able to work with.
I love the way that this room looks and I have a feeling that I will be using it a lot in some of my renders. What is also cool is that I can experiment with the textures, changing them to look other ways as well!
If this is an .obj file it will work great with my Vue or my Bryce 3d programs.