In the patriarchal hierarchy that governs the United Kingdom, only direct descendants of the British royal family can receive the office of kings. Philip is the son of Prince Andrew of Greece and Princess Alice of Battenberg. Thanks to the titles of his parents, Felipe was known as the Prince of Greece and Denmark.
Felipe decided to abandon that name to become an English citizen. The reason: his future wedding with Isabel. They both met when she was just 13 years old! Before marrying her on November 20, 1947, Felipe ceased to be Prince and adopted the Mountbatten last name from his grandfather. In that period of time, Philip received the charges of Duke of Edinburgh, Count of Merioneth and Baron Greenwich.
Meanwhile, Isabel II is the firstborn of King George VI and Queen Elizabeth. The couple had only two daughters and no boys, so Isabel II became the heiress to the throne. For that reason she is Queen. Instead, Felipe became a member of British royalty by marriage, not by descent. That is, you do not have the right to govern on your own.Edit best answer History