Pt.2...Elizabeth gave birth to her first child, Prince Charles, on 14 November 1948. One month earlier, the King had issued letters patent allowing her children to use the style and title of a royal prince or princess, to which they otherwise would not have been entitled as their father was no longer a royal prince. The couple would have three more children.
During the 70 yeas of marriage, the Queen and Duke are said by insiders to have had a strong relationship throughout their marriage, despite the challenges of Elizabeth's reign. The Queen has referred to Prince Philip in a speech on the occasion of her Diamond Jubilee in 2012 as her "constant strength and guide". Philip has always supported his wife during her reigned.
The accession of Elizabeth to the throne brought up the question of the name of the royal house. The Duke's uncle, Louis Mountbatten, 1st Earl Mountbatten of Burma, advocated the name House of Mountbatten, as Elizabeth would typically have taken Philip's last name on marriage; however, when Queen Mary, Elizabeth's grandmother, heard of this suggestion, she informed the British Prime Minister Winston Churchill, who himself later advised the Queen to issue a royal proclamation declaring that the royal house was to remain known as the House of Windsor. Prince Philip privately complained, "I am nothing but a bloody amoeba. I am the only man in the country not allowed to give his name to his own children."
On 8 February 1960, several years after the death of Queen Mary and the resignation of Churchill, the Queen issued an Order in Council declaring that Mountbatten-Windsor would be the surname of her and her husband's male-line descendants who are not styled as Royal Highness or titled as Prince or Princess. While it seems the Queen had "absolutely set her heart" on such a change and had it in mind for some time.