Jaʿfar ibn Yaḥyā

…and his sons al-Faḍl and Jaʿfar were placed in charge of the Caliph’s personal seal.

…associated his sons al-Faḍl and Jaʿfar, for the vizier at this period was not only an initiator of policy but also had attached to himself a corps of administrators to carry out his decisions. Al-Khayzurān had a considerable influence over the government until her death in 789. Thereafter until 803…