I’ve finally started on Adela’s new clothes: a 15th century Flemish kirtle and gown suitable for fancy occasions. The kirtle is based on the ones shown in various paintings by Rogier van der Weyden, like this one:
It has short sleeves, with distinctive seam lines at the front and back of the shoulder. Some examples have another seam at the top of the shoulder as well. While in some cases it looks like it might be a raglan sleeve, you can see here a short set-in sleeve. There is also a seam line parallel to the neckline, as well as what looks like a binding at the neckline edge itself. I’ve got some theories about this that I’ll be putting into practice as this progresses.
ETA:
Here’s the pattern:
When I worked the pattern out, I put the shoulder seam in. I’m not sure if it will make any difference; I may go ahead and edit it out when I make the real thing.