British soldiers, sailors and air force personnel were making final preparations Friday for Prince Philip’s funeral, a martial but personal service that will mark the passing of a royal patriarch who was also one of the dwindling number of veterans of World War II.

More than 700 military personnel are set to take part in Saturday’s funeral ceremony at Windsor Castle, including army bands, Royal Marine buglers and an honor guard drawn from across the armed forces.

But coronavirus restrictions mean that instead of the 800 mourners included in the funeral plans before Philip’s death last week, there will be only 30 inside St. George’s Chapel, including the widowed Queen Elizabeth II and her four children.

Philip, who died April 9 at age 99, was closely involved in planning his funeral, an event which will reflect his Royal Navy service and lifelong military ties - and his love of the rugged Land Rover Defender. Philip drove several versions of the four-wheel-drive vehicle for decades until he was forced to give up his license at 97 after a crash. His body will be borne to the chapel on a modified Land Rover that he designed himself, painted military green and with an open back to carry a coffin.

Also read: Too much? BBC gets complaints over Prince Philip coverage

He and the queen’s children - Prince Charles, Princess Anne, Prince Andrew and Prince Edward - will walk behind the hearse. So will grandsons Prince William and Prince Harry, although not side by side. The brothers, whose relationship has been strained amid Harry’s decision to quit royal duties and move to California, will flank their cousin Peter Phillips, the son of Princess Anne.

The moment is likely to stir memories of the image of William and Harry at 15 and 12, walking behind their mother Princess Diana’s coffin in 1997, accompanied by their grandfather Philip.

Armed forces bands will play hymns and classical music before the funeral service, Inside the chapel, Royal Marine buglers will sound “Action Stations,” an alarm that alerts sailors to prepare for battle. Philip spent almost 14 years in the Royal Navy and saw action in the Mediterranean, Indian Ocean and Pacific during World War II.

Gen. Nick Carter, the head of Britain’s armed forces, said the ceremony would “reflect military precision and above all, I think, it will be a celebration of a life well-lived.”

“It will also show, I think, how much the armed forces loved and respected him,” Carter told the BBC. “The military always have a great respect for people who have their values and standards and who indeed have shown great courage, and I think that, when we look back at his war record, that sense of courage and what he did is something all of us have great admiration for.”

Along with Philip’s children and grandchildren, the 30 funeral guests include other senior royals and several of is German relatives. Philip was born a prince of Greece and Denmark and, like the queen, is related to a thicket of European royal families.

Mourners have been instructed to wear masks and observe social distancing inside the chapel, and not to join in when a four-person choir sings hymns. The queen, who has spent much of the past year isolating with her husband at Windsor Castle, will sit alone.

In a break with custom, members of the royal family who have served in the armed forces or have ceremonial military appointments will wear civilian clothes to the funeral.

Also read: Prince Philip, husband of Queen Elizabeth II, dies aged 99

The decision, signed off by the queen, means that Harry won’t risk being the only member of the royal family not in uniform. Harry lost his honorary military titles after he gave up frontline royal duties last year. As a result, protocol suggested that Harry, an army veteran who served two tours of duty in Afghanistan, would only wear a suit with medals at royal functions.

The decision also sidesteps another potential controversy after reports that Prince Andrew, the queen’s second-oldest son, considered wearing an admiral’s uniform to his father’s funeral. Andrew retains his military titles even though he has been sidelined from royal duties because of scandal around his friendship with convicted sex offender Jeffrey Epstein.