Mostly Wool, and linen. However, they had grades of Wool that make Pashmina feel coarse.
And not all wool was Sheeps-wool.
Of course- hide and leather was also used.
In general- Ms Boods has a completely correct and informative post.
Yes. Janet Arnold is Costume Goddess. There’s a bit in one of her books- I think it’s Eleanor of Toledo’s burial gown- where she says she had to guess at the back pattern because the corpse had decomposed so badly. She had nerve, that woman.
Huh. I didn’t know they only had warp-weighted looms up until the 15th. That’s extremely limiting. I’ve done spinning (drop spindle and wheel) and weaving on a box loom with heddle, and it’s a very limited and annoying way to make fabric. I am doubly impressed at early medieval weavers.
Heh. I lived there for fifteen years, including high school. Do they hold this at the County Fairgrounds?
Indeed! I used to help out there with one of the vendors for years.
Ms Purl – I would like to be me when I grow up 
Anyway, glad I could help answer the questions; please if I have mixed up anything or got my facts wrong, I hope someone will sort it out. Handwork has been a hobby and a source of extra income for more than 30 years for me, and it’s been nice that I’ve been able to handle and study a lot of mediaeval textiles first hand as a side field in my history work (The British Museum has some nice old things, and I’ve been on a cook’s tour at the Victoria and Albert Museum’s textile storage facilities – do you remember the final scene in Indiana Jones when they store the Ark? That big, high vaulted room that goes on forever? The main textile storeroom at the V & A looks just like that!)
Again, must dash; I play lute in an ensemble and we have rehearsals today.