أحمد بن يحيى
Ahmad bin Yahya was the oldest son of Yahya Muhammad Hamid ed-Din, of the Hamid al-Din branch of the al-Qasimi dynasty. Yahya had been imam of the Zaidi sect of Shia Islam practiced by tribes in northern Yemen, from 1904, when he succeeded his father. Yahya had assumed the title of King of Yemen on the breakup of the Ottoman rule over the country in 1918.