High Representative for Foreign and Security Policy of the European Union Federica Mogherini has congratulated Prince Muqrin bin Abdulaziz Al Saud on being pledged allegiance as Crown Prince and being appointed as Deputy Premier. In a letter on this occasion, Mogherini expressed confidence that the deep and long-lasting friendship between the European Union and the Kingdom of Saudi Arabia will continue for the benefit of both sides, wishing the Kingdom of Saudi Arabia stability and prosperity.