King Charles' Godson Hugh Grosvenor and Wife Olivia Henson Welcome 1st Baby

Hugh Grosvenor, the Duke of Westminster, and wife Olivia Henson are officially parents.

“The Duke and Duchess of Westminster are thrilled to announce the birth of their baby daughter,” the couple told Hello! in a Sunday, July 27, statement. “They have named her Cosima Florence Grosvenor, who was born in London today.”

The statement continued, “Both the Duchess and Cosima are doing well. The Duke and Duchess now look forward to spending this special time together as a family.”

News broke in March that Grosvenor was expecting his first baby with Henson.

“The duchess is expecting a baby in the summer,” a spokesperson for Grosvenor and Henson said at the time. “The couple are delighted with the news and are very much looking forward to starting a family together.”

Grosvenor married Henson in June 2024, eight years after inheriting his dukedom. Hugh’s father, Gerald Cavendish Grosvenor, previously presided over the Westminster duchy until his death in 2016 following a heart attack.

Hugh also does philanthropic work, including running the Westminster Foundation.

“We’re focusing our efforts where we believe we can make the greatest impact through grant funding, helping charities grow stronger and more resilient,” Hugh said in a June statement. “[We’re also] teaming up with others to push for broader positive change.”

In addition, Hugh has impressive royal ties as the godson of King Charles III and a longtime friend of Prince William. (The Prince of Wales, 43, even named Hugh as his eldest son Prince George’s godfather.)

William even served as an usher in Hugh’s 2024 wedding, attending solo while his wife, Princess Kate Middleton, battled an undisclosed form of cancer. Kate, 43, confirmed her diagnosis in March of that year.

“I am well and getting stronger every day by focusing on the things that will help me heal in my mind, body and spirits,” she said in a statement at the time. “Having William by my side is a great source of comfort and reassurance too, as is the love, support and kindness that has been shown by so many of you. It means so much to us both.”

Kate took a step back from her official royal duties as she underwent chemotherapy, which she completed in fall 2024. She is now in remission.

“You put on a sort of brave face, stoicism through treatment. Treatment’s done, then it’s like, ‘I can crack on, get back to normal,’ but actually, the phase afterwards is really, really difficult,” Kate recalled during a public appearance earlier in July. “You’re not necessarily under the clinical team any longer, but you’re not able to function normally at home as you perhaps once used to. Someone to help talk you through that, show you and guide you through that sort of phase that comes after treatment, I think is really valuable.”