Why Prince Philip Was Never Called a King

Upon marrying Queen Elizabeth, Prince Philip dropped his title as Prince of Greece and Denmark to become the Duke of Edinburgh.

Why Prince Philip Never Wore a Crown Even at Queen Elizabeth's Coronation

Why Camilla Will Be Known As 'Queen,' but Prince Philip Was Never King

Prince Philip title: Why Philip isn't king but Kate Middleton could be Queen, Royal, News

Has Prince Philip ever worn a crown? If so, when, where, and what was the occasion? - Quora

Why Prince Philip is not called King

Why the BBC would never broadcast Prince Philip: the Plot to Make a King, Television

The Crown,' season three: Did Prince Philip really have a midlife crisis?

Why will Camilla be Queen but Prince Philip wasn't King? - AS USA

Why was Prince Philip not a king?

Prince Philip title: Why is Prince Philip not called King?, Royal, News

Prince Philip: From Controversial Consort to Royal Stalwart

Why Wasn't Prince Philip a King? - WSJ