Ahmad bin Yahya
Upon the murder of Imam Yahya, his son Ahmad bin Yahya traveled through North Yemen, in an attempt to rally the tribes behind him, winning support as the new Imam of Yemen. The supporting tribesmen of Ahmad Hamid al-Din bin Yahia then surrounded Sana'a. As a result, Ahmad was able to regain control of Sana'a, but the price paid was giving the tribes leave to sack the capital. The power was then forcefully reinstalled and the Alwaziri ruler Abdullah deposed and beheaded, in favor of Hamidaddins.