Well, here’s the first pass.
Brussels and Amersterdam, cold and rainy. Bucharest, warm and sunny. Transylvania, cool and sunny.
So, waterproof boots are in order for 6 days of wet weather at least. Sneakers, flats and sandals for the rest. A puff vest, a rain jacket, an umbrella and multiple scarves.
2 skirts, 4 pairs of pants, 2 dresses, 2 T shirts, 2 turtlenecks, 1 blouse, 2 long sleeve shirts. 4 quick dry underwear, nightgown, spare bra and cosmetics, first aid and phone chargers. Oh, and a bathing suit!
I may edit, but I feel comfortable with this. For now.