The governor of a province of the Ottoman empire, next in dignity to the grand vizier.
Webster 1828 Edition
Beglerbeg
BEG'LERBEG
,
Noun.
[See Beg.] The governor of a province in the Turkis empire, next in dignity to the grand vizier. Each has three ensigns or staves, trimmed with a horse tail, to distinguish him from a bashaw, who has two, and a beg, who has one. His province is called beglerbeglik.