The Great Pattern Review
Patterns for Theatrical Costuming
by Katherine Holkeboer
Medieval Gown

Janet Canning - Recommended
It's straightforward. I didn't have any major problems. The Bliaut skirt is cut on the bias and there is a lot of it so it's a very heavy gown to wear. I suggest you gather the sleeves before you attach them to the dress. Put the dress on and have someone help you make adjustments to the sleeves.
Court Gown - Mid 15th Century, 1450-60

Pat Shaw - Recommended
I drafted the pattern for this dress from the pattern in this book. It turned out very well.