It has been three years since Prince Philip passed away
Royal biographer Ingrid Seward has revealed that Prince Philip was "quite unpopular" when he began making "sweeping changes" to the royal household many years ago.
Seward told GB News that the Duke of Edinburgh brushed aside his navel ambitions to "support" his wife, Queen Elizabeth.
She explained: "When the Queen's father became really ill he was he was on service in Malta. He realised then that his naval days were going to be over and that he had to do what he was destined to do, which was support his wife, the Queen, as monarch.
Host Eamonn Holmes asked her: "Ingrid, we talked about his military career there. So he was used to giving and taking orders there and did he take orders in the royal household or did he make the orders?"
Seward explained:: "Well, Philip started to make the orders because he saw that the household was run in a very inefficient way.
"He was an extremely efficient man, he wanted things to run smoothly. He became a little bit unpopular because he started making quite sweeping changes within the royal household to make it more efficient and that wasn't always popular with the established members of the staff that were there."