In the summer of 1946, the King granted Philip permission to marry Elizabeth, then aged 20. Before the official announcement of their engagement in July 1947, Philip stopped using his Greek and Danish royal titles and styles, became a naturalised British subject, and adopted his maternal grandparents' surname Mountbatten. In November 1947, he married Elizabeth, was granted the style His Royal Highness and was created Duke of Edinburgh, Earl of Merioneth, and Baron Greenwich. Philip left active military service when Elizabeth ascended the throne in 1952, having reached the rank of commander. In 1957, he was created a British prince. Philip had four children with Elizabeth: Charles, Anne, Andrew, and Edward.
In the summer of 1946, the King granted Philip permission to marry Elizabeth, then aged 20. Before the official announcement of their engagement in July 1947 Philip stopped using his Greek and Danish royal titles and styles, became a naturalised Britis,h subject, and adopted his maternal grandparents' surname Mountbatten. In November 1947, he married Elizabeth, was granted the style His Royal Highness and was created Duke of Edinburgh, Earl of Merioneth, and Baron Greenwich. Philip left active military service when Elizabeth ascended the throne in 1952, having reached the rank of commander. In 1957, he was created a British prince. Philip had four children with Elizabeth: Charles, Anne, Andrew, and Edward.