Yahya Muhammad Hamid ed-Din (18 June 1869 – 17 February 1948) (or Imam Yahya) was the first king of the Mutawakkilite Kingdom of Yemen from 1918 until his assassination in 1948. He became Imam of the Zaydis, a branch of Shia Islam, in 1904 after the death of his father, Muhammad Al-Mansur, and Imam of Yemen in 1918. His name and title in full was "His Majesty Amir al-Mu'mimin al-Mutawakkil 'Ala Allah Rab ul-Alamin Imam Yahya bin al-Mansur Bi'llah Muhammad Hamidaddin, Imam and Commander of the Faithful" (the Prince of the Believers, He who Relies on God, the Lord of the Universe).
Yahya Muhammad Hamid ed-Din was born on Friday 18 June 1869 in Sanaa into the Hamidaddin branch of the al-Qasimi dynasty who ruled most of Yemen proper and the southern region of present-day Saudi Arabia for over 900 years. When Yahya became Imam, he effectively ruled over the mountainous areas of what will be North Yemen. However, the Ottomans who made claims in the area did not recognize the rule of the Imams of Yemen since their entry into the region. He spent the early years of his reign attempting to expel the Ottoman presence, who withdrew only after their defeat in World War I.
