The Duke of Westminster, Hugh Grosvenor, marked his daughter Lady Cosima Florence Grosvenor's first birthday this week. The 35-year-old aristocrat, who is godfather to both Prince George and Prince Archie, celebrated the milestone on July 27, 2026.
Family Celebration
The duke and his wife, the Duchess of Westminster (Olivia), welcomed their first child on July 27, 2025. A statement at the time said: “The Duke and Duchess of Westminster are thrilled to announce the birth of their baby daughter. Both the duchess and Cosima are doing well. The duke and duchess now look forward to spending this special time together as a family.” The couple, who live in Cheshire, likely marked the occasion privately.
Recent Public Appearance
Earlier this month, on July 14, Hugh and Olivia were pictured in London alongside the Mayor of London at the reopening of Grosvenor Square, which opened to the public on July 20. The Westminster Foundation partnered with London Wildlife Trust to deliver a climate change and biodiversity education programme from the new Education Centre in the square.
Philanthropy and Connections
The foundation has provided a £500,000 grant to support opportunities for children, young people, and families to “connect with nature through hands-on learning experiences focused on biodiversity, climate change and the natural environment.” Hugh is a close friend of both the Prince of Wales and the Duke of Sussex. Prince William acted as an usher at his wedding at Chester Cathedral in 2023, but Harry agreed not to attend amid their long-running rift. Princess Eugenie also attended the wedding.
Hugh Grosvenor became an instant billionaire at age 25 when he inherited his title and control of the historic Grosvenor Estate following his father's death from a heart attack in 2016. His property company, Grosvenor Group, owns hundreds of acres in Mayfair and Belgravia, as well as major developments like Liverpool's One shopping centre. In 2020, the duke donated £12.5 million to the UK's Covid-19 relief effort, including funds for NHS Charities Together and medical research.
