The Duke of Edinburgh made the Queen cry with his ‘almost brutal’ attitude when she refused to take his surname of Mountbatten, a biography claims.

It says the Queen ‘failed to see that her actions would have a profound effect on Philip, leading to strains in their marriage’.

And it even suggests that the ten-year delay between the births of the Princess Royal and the Duke of York may have been the result of ‘Philip’s anger over the Queen’s rejection of his family name’.