The base for this pattern is Burda WOF 03/2002 #125, which I had made several years ago but then lost the adjusted pattern in one of our numerous moves.
The original pattern features raglan seams (omitted), long sleeves (shortened), waist darts in the back (omitted), and a large wide cowl-like collar (adjusted to a sleeker, narrower foldover style). I added a self-fabric belt that is long enough to wrap around twice, and pegged the hem for a more flattering look.
Sleeve length here is inspired by Butterick 5247. I simply measured from the neck point over the shoulder to almost the elbow and transferred that measurement to the pattern. It worked out really well - I will continue to use this length.
I was looking for a drapey summer-weight knit like Sophia but there was none in my limited stash. I decided to use a beefy wool doubleknit, which actually makes this a three-season dress rather than a summer dress.
This is a very comfortable dress and the pattern is easy to sew, so there will be more versions of it in the future.