Duke and Duchess welcome a baby girl named Cosima

The new dad is one of Prince George's godparents

CHESTER, ENGLAND - JUNE 07: Hugh Grosvenor, Duke of Westminster and Olivia Grosvenor, Duchess of Westminster wave and smile to well-wishers after their wedding ceremony at Chester Cathedral on June 07, 2024 in Chester, England. (Photo by Chris Jackson/Getty Images)

JULY 28, 2025 11:12 AM EDTJUL 28, 2025, 11:12 AM EDT

And baby makes three! The Duke and Duchess of Westminster have welcomed their first child. Hugh Grosvenor and his wife Olivia Henson's baby girl, named Cosima Florence Grosvenor, arrived on Sunday, July 27. The new parents are said to be "thrilled."

A statement announcing Cosima's birth read (via HOLA! USA's sister brand HELLO!): "The Duke and Duchess of Westminster are thrilled to announce the birth of their baby daughter."

CHESTER, UNITED KINGDOM - JUNE 07: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Hugh Grosvenor, Duke of Westminster and Olivia Grosvenor, Duchess of Westminster leave Chester Cathedral following their wedding ceremony on June 7, 2024 in Chester, England. Hugh Grosvenor, 7th Duke of Westminster (who inherited his Dukedom upon the death of his father Gerald Grosvenor, 6th Duke of Westminster in 2016), announced his engagement to Olivia Henson (who becomes the new Duchess of Westminster) in April 2023. (Photo by Max Mumby/Indigo/Getty Images)

"They have named her Cosima Florence Grosvenor, who was born in London today, 27 July," 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."

It was revealed back in March that the Duke and Duchess were expecting their first child. A spokesperson for the couple said in a statement (via HELLO!): "The Duke and Duchess of Westminster are very pleased to share that the Duchess is expecting a baby in the summer. The couple are delighted with the news and are very much looking forward to starting a family together."

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The announcement came less than a year after Hugh and Olivia tied the knot in what was described as the society wedding of the year. The Duke and Duchess got married in June of 2024 at Chester Cathedral. The bride looked elegant for her big day wearing a dress by Emma Victoria Payne. The Prince of Wales reportedly served as an usher at the couple's wedding.

Hugh is one of Prince George's godparents. When it came to picking godparents for their firstborn, a source told PEOPLE (via E! News) in 2013 that the Prince and Princess of Wales "wanted to include family and friends and reflect their life on both sides." In addition to being George's godparent, the Duke is reportedly a godfather to Meghan Markle and Prince Harry's son, Prince Archie. Hugh is also one of King Charles' godchildren.

BIRMINGHAM, ENGLAND - APRIL 15: Prince William, Prince of Wales, below center Hugh Grosvenor, Duke of Westminster, Olivia Grosvenor, Duchess of Westminster celebrates the first goal of Aston Villa during the UEFA Champions League 2024/25 Quarter Final Second Leg football match between Aston Villa FC and Paris Saint-Germain (PSG) at Villa Park on April 15, 2025 in Birmingham, England. (Photo by Jean Catuffe/Getty Images)

Months before their daughter's arrival, Hugh and a pregnant Olivia were spotted at Villa Park, watching a match between Aston Villa F.C. and Paris Saint-Germain F.C., one row ahead of Prince William and Prince George. The Duke and Duchess were seen cheering in the stands, along with the heir to the throne and his son, who turned 12 on July 22.