20th century Sweden-Norway Austria-Hungary Denmark-Iceland were Norway,Hungary,Iceland recognized sovereign states? Canada, Australia, New Zealand ... monarch is Queen of United Kingdom, they are sovereign states
Austria-Hungary was a little bit more than personal union but less than a united kingdom. Each had ther own parliaments but there was coordination between them. Norway was not fully sovereign. One reason the Norwegian parliament chooses the Nobel peace prize winner is that at the time, Norway had not control over its foreign affairs.