|Petrus Christus, after 1460, Portrait of a Young Girl|
What bothers me about this argument though is that many, if not all, of these cone type hats seem to be covered with fabric (though I can think of one that sort of looks like woven ribbons or a basket type surface, it's hard to tell). Covering woven straw or reeds with delicate fabric seems like a bad plan, as the straw would wear through some of the clearly very delicate cloth that's on these hats. Sure, you can pad it out to protect the cloth, but that makes for a pretty chunky looking hat.
I don't know. I have a lot of buckram so since I have that to hand and am not entering that hat in an A&S competition, I'm going to use that for the first version of the hat. I've always loved the simplicity of the hat in the Christus portrait, and the neck drape is all kinds of fun, so I might go with that look instead of the more formal gold thing in the original painting I'm basing the actual dress on. The black hat strikes me as less formal somehow, which I think would work better with my wool gown. The dates on the paintings are close enough that I don't think it will be a problem, plus the hats are very similar in shape and sitting in the same position on the head (the gold hat is a little more rounded in shape) so the style doesn't seem to have changed much.