Am sure I tweeted this ... I think.
The Countess of Mornington, the wife of the Earl of Mornington, gave birth to a son, on December 10. The couple are the parents of twins, Lady Mae Wellesley and Viscount Wellesley (Arthur) who will celebrate their 5th birthday in January.
The 40-year-old Lady Mornington is the former Jemima Kidd. Lord Mornington is the eldest son of the Marquess and Marchioness of Douro. Lady Douro was born HRH Princess Antonia of Prussia. Lord Douro is the heir apparent to the Duke of Wellington.