Chamberlains

Hajib or hadjib (, ) was a court official, equivalent to a chamberlain, in the early Muslim world, which evolved to fulfil various functions, often serving as chief ministers or enjoying dictatorial powers. The post appeared under the Umayyad Caliphate, but gained in influence and prestige in the more settled court of the Abbasids, under whom it ranked as one of the senior offices of the state, alongside the vizier. From the early caliphates, the post spread to other areas under Muslim dominion: in al-Andalus the was always superior to the vizier and by the 10th century had come to wield enorm

Abbasid vizier

Swedish archeologist, chamberlain and ethnologist (1829–1904)

German chamberlain

Sicilian noble

barmakid chamberlain of Harun al-Rashid