Jawdhar

Jawdhar (, before 909March 973), surnamed al-Ustadh (), was a eunuch slave who served the Fatimid caliphs al-Qa'im, al-Mansur, and al-Mu'izz as chamberlain and de facto chief minister until his death. He was an extremely powerful figure in the Fatimid court, and was ranked immediately after the caliph and his designated heir. The accession of al-Mansur was probably due to Jawdhar's machinations, and he was placed in charge of keeping the new caliph's relatives under house arrest. He enjoyed close relations with the Kalbid emirs of Sicily, which enabled him to engage in profitable commerce with the island. Jawdhar accompanied al-Mu'izz during the migration of the court from Ifriqiya to Egypt, but died on the way at Barqa. His collected documents and letters were published after his death by his secretary as the , and form one of the main historical sources for the governance of the Fatimid state in the period.

==Origin and early career== Jawdhar was a eunuch slave of Slavic origin () who entered the service of the Aghlabid dynasty that ruled Ifriqiya. When the Aghlabids were overthrown and the new Fatimid ruler, Caliph al-Mahdi Billah () entered the Aghlabid capital, Raqqada, in January 910, he had the Slavic palace slaves mustered before him, assigning them to various family members. eunuchs were highly prized at the Aghlabid court: far removed from their homelands—usually the Balkans—and without any family in Ifriqiya, they were entirely dependent on their masters, and correspondingly displayed great loyalty to them. Although still a boy, Jawdhar made an impression on al-Mahdi with his austerity and ability, and the new caliph assigned him to the household of his son and designated successor, al-Qa'im ().