WATCH: Mike Tindall's opens up about Prince Philip's funeral
"Old age" is an accepted term if the patient is over 80 years old and the doctor signing the certificate has "personally cared for the deceased over a long period and has observed a gradual decline in his general health," according to guidance given to doctors completing certificates of cause of death in England and Wales.
The Duke of Edinburgh's death was registered on 13 April, four days after his passing, with the Royal Borough of Windsor and Maidenhead by his private secretary, Brigadier Archie Miller-Bakewell, who attended the funeral.
The document lists his full name as: "His Royal Highness The Prince Philip, Duke of Edinburgh formerly known as Prince Philippos of Greece and Denmark formerly known as Philip Mountbatten."
His first occupation is listed as "Naval Officer," while his second is "husband of Her Majesty Queen Elizabeth II, The Sovereign".
Prince Philip passed away nearly a month ago, and Buckingham Palace announced the sad news with a statement that read: "It is with deep sorrow that Her Majesty The Queen has announced the death of her beloved husband, His Royal Highness The Prince Philip, Duke of Edinburgh. His Royal Highness passed away peacefully this morning at Windsor Castle. The Royal Family join with people around the world in mourning his loss. Further announcements will be made in due course."
His funeral took place eight days later and was attended by only 30 people, including his grandson Prince Harry, who flew in from Los Angeles without his wife Meghan Markle, who is heavily pregnant and was advised not to travel by her doctors.
Gallery: Prince Philip's funeral: The most moving photos from the day - LIVE UPDATES (Hello!)
The Queen and members of the royal family will bid an emotional farewell to the Duke of Edinburgh at his funeral today at St George's Chapel in Windsor. While plans for Prince Philip's funeral have been modified in light of COVID-19 restrictions, the ceremonial aspects of the day and the service are still in line with the Duke's wishes, Buckingham Palace has said. Only 30 guests will be in attendance at the service and these include all of Philip's children and grandchildren plus their spouses, the children of the Queen's sister Princess Margaret, and three of Philip's German relatives: Bernhard, Hereditary Prince of Baden; Prince Donatus, Landgrave of Hesse; and Prince Philipp of Hohenlohe-Langenburg. Also invited is a close friend of Philip's, the Countess Mountbatten of Burma, Penelope "Penny" Knatchbull, who was previously known as Lady Romsey and later Lady Brabourne, and was the duke’s carriage driving partner. No members of the royal family will be in military uniform – the men will wear morning coats with their medals while the women will appear in day dresses.
Leading the procession to the chapel will be the Band of the Grenadier Guards, followed by the Major General commanding the Household Division, service chiefs, the Duke of Edinburgh’s coffin on a custom-built Land Rover hearse, members of the royal family on foot, Philip's household staff, and finally a Bentley carrying the Queen. A national minute's silence will take place at 3pm at the start of the funeral and the Duke will be interred in the royal vault in the chapel at the end of the service, which will be conducted by the Dean of Windsor, David Conner.
The Duchess of Cambridge has been pictured for the first time since her grandfather-in-law's Prince Philip's sad passing. Earlier this week, Prince William shared a touching tribute to the Duke, saying: "I will always be grateful that my wife had so many years to get to know my grandfather and for the kindness he showed her. I will never take for granted the special memories my children will always have of their great-grandpa coming to collect them in his carriage and seeing for themselves his infectious sense of adventure as well as his mischievous sense of humour!"
Zara arrived with her husband Mike in a separate car. The couple recently welcomed their third child on 21 March, calling him Lucas Philip Tindall, with his middle name a touching tribute to Zara's grandfather.
