Is there a good link or thread in this forum or article to help untangle his royal relatives/connections and explain what it means to be a prince of Greece and Denmark and if the Danes today are princes of Greece, etc?
I found the pictures and story of him and Mihai so intriguing!
The current Greek royal family descends from a second son of King Christian XI of Denmark, born Prince Vilhelm of Denmark, he changed his name and became King George of Greece. This is where most of the connections come from--among George's siblings were Queen Alexandra of the UK, Empress Maria Feodorovna of Russia and of course his older brother Frederick VIII of Denmark. George chose to remain a Danish prince when he accepted the throne of Greece, however, so his descendants are entitled to call themselves Princes and Princesses of both Greece and of Denmark.
I'm not sure why Haakon VII decided to drop the Danish titles when he became king, while the Greeks kept theirs though.