The daughter of Prince and Princess Michael of Kent was one of the many mourners who attended the state funeral of Queen Elizabeth II.
Lady Gabriella Windsor, 41, appeared solemn as she arrived for the service with her husband Thomas Kingston on Monday, September 19.
She was dressed in black and wearing a knee-length dress, hat and gloves while carrying a clutch bag.
Lady Gabriella reportedly collapsed last week during a service as the late Queen's coffin arrived at Westminster Hall.
A member of staff was believed to have rushed over to assist the royal during the minor commotion while her husband also helped.
She was not seen again for the remainder of the service and was missing from a photo with other members of the royal family.
However, Thomas, her mother and brother and sister-in-law all remained on site, suggesting that Lady Gabriella had recovered from the incident.
The royal is 55th in line to the throne and her parents are cousins to the late Queen.
She works as a freelance writer for publications such as The London Magazine.
She is said to have enjoyed a close relationship with Queen Elizabeth and was a guest a her wedding to Thomas in October 2019.
The monarch's funeral began at 11am on Monday and concluded with a two-minute silence at approximately 11:55am.
Around 2,000 mourners attended the service, including one of her most devoted and loyal staff members, Angela Kelly, who was her dresser and close confidant.
During a rare interview with the Telegraph in 2007, she said: "We are two typical women. We discuss clothes, make-up, jewellery. We say, 'Would this piece of jewellery look nice with that outfit?', and things like that."
Other guests included a host of world leaders and dignitaries including Prime Minister Liz Truss, US President Joe Biden and the prime minister of Canada Justin Trudeau.
After the service ended, the coffin was carried through Westminster as thousands of public members lined the street to say a final goodbye to the Queen.
One man was arrested after allegedly trying to jump the barriers as the procession went past.
The coffin arrived at Wellington Arch before it began its journey to Windsor Castle, arriving at around 3:10pm.
The Queen will be interred in St George's Chapel during a private ceremony attended by senior royal members of the family.
She will be laid next to her husband Prince Philip, who died in 2021, along with her sister, mother and father.