A list of all the family/sibling relationships in Hetalia. To adopted and blood related. This is them all.

If I have missed some, please tell me.

America and Canada
America and England
America and France
Canada and France
Canada and England
England and Sealand
England and Seychelles
England and Hong Kong
England and Australia
England and Scotland
England and Roman Empire
England and Germania
France and Seychelles
France and Spain
France and Italy
France and Romano
France and Belgium
France and Monaco
France and Roman Empire
Italy and Romano
Italy and Spain
Italy and Roman Empire
Romano and Spain
Romano and Roman Empire...