The king's four older sisters. Princess Birgitta is in pink/fur. Here she is as a young woman in the late 1950s.
The woman in red is the queen of Denmark. She designs a lot of her own clothes and sometimes it can be a hot mess but I agree that she looks fab here. From what I've read about Queen Margrethe she seems laid back and fun, not stuffy like I imagine Queen Elizabeth must be.
This picture just gets better as you look at it. Day-Glo red hair? Check! Random shopping bag? Check! Lady wearing white to a wedding? Check! Chevron clutch? Check!
The redhead is a Swedish leprechaun, the traditional wedding escort.
I'm not finding a lot about Swedish leprechauns. Does she dye her hair that color for the wedding? (as in, is it a requirement for the leprechaun to be red haired? She sure went all out if that's the case.)