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.