Originally Posted by imojeen
for example, Does Princess Marta Louise and her children attend Norwegian National Day?.
Yes, princess Märtha Louise and her family were on the balcony too, as well as princess Astrid, her aunt who is living in Norway. Here are some photos of Märtha Louise and family: Prinsessan Märtha Louises dotter har fått hårproblem | Svensk Damtidning
As for the Swedish royal family, it's just princess Christina and her husband that attend some royal functions, the rest of the sisters and their families seems to want to stay away.