As I as a non english understand you want 5 countries that still have the same way of governement, souveranty to a date before lets say 1777 when the USA was formed (just say 1777 as that was a easy date to remember)

Here is a list :

-Spain (as the King of Spain gave Columbus the funding for his trip,could have been a BIG chiprun, they still have a King althought the 'problem' with Franco could them make uneligable)
-The Netherlands (still have their Queen now)
-England (still have their Queen now)
-Sweden (still have their King)
-Denmark (also still have their Queen and is I believe the oldest monarchie and the world)
-Norway (still have their King and are there already a long time)

-France -> not qualify after they killed the Sun King and became republic
-Belgium -> we are so young only formed 1830
-Austria -> very old but also changed to a president
-Hungary -> also very very old but same as Austria
-Luxemburg -> to young
-Monaco -> to young
-Andorra -> pricipality but recently changed
-Lichtentein -> I think to young
-Germany -> also changed their statue
-Italy -> although extremly old, Rome and stuff but,also changed their statue
-Greece -> also extremly old but I think the ancien Greek gods do not rule anymore
-Finland -> to young
-Turkey -> very old but also change their status
-Yougoslavia -> also very old but after these last few years everybody lost track what is what and where is whit who ? Servia, Bosnia, Fyrom etc.
and many many many more so if I left a few out sorry to those who live there and read the BB.....

What a question to find at 07.30 am after I just checked for email, but hey I have to take the conceqenses of my posts on the BB (VVBG)
Again I did not wanted to upset anybody and have some fun like we now have...
Take care and kind regards,
The one and only Bob Hermans R-4479 Belgium (as so many people replied to Jim question)