Following the birth of Prince William, the Prince of Wales presented his wife with a gold pendant that had their son's name engraved on it, in Charles' distinctive handwriting. Diana would regularly wear the pendant in private but only wore it once in public, while at a polo match at Windsor in August that same year. This became a tradition in the family, and in 2013 the Duchess of Cambridge received a gold disc from her sister which bears the name of her eldest son, Prince George, and the first letter of her husband's name.[38]