Agrément/Diplomatic accreditation Ambassador Observations List of heads of government of Yemen List of prime ministers of the United Kingdom Term end October 24, 1951 Assayed Hasan bin Ali Ibrahim 1967 during the Mutawakkilite Kingdom of Yemen in Exile: List of persons no longer included in the foregoing list but still accepted by Her Majesty's Government as personally possessing Diplomatic Privileges.[1] Hassan ibn Yahya Winston Churchill January 1, 1955 Assayed Mohamed Ibrahim Chargé d'affaires Ahmad bin Yahya Anthony Eden January 1, 1967 Ahmed Mohamed Al-Shamy [2] Abdullah al-Sallal Harold Wilson May 3, 1973 Mohsin Ahmed Alaini His Excellency Mr. Mohsin Ahmed Alaini, to present The following Acts today received the Royal Assent [in the Letters of Recall of his predecessor Mr. Ahmed accordance with the provisions of the Royal Assent Act Mohamed Al-Shamy, and his own Letters of Credence as 1967]: Ambassador Extraordinary and Plenipotentiary from the Northern Ireland Assembly Act 1973 (c.