The Collaborative International Dictionary
Beglerbeg
Beglerbeg \Beg"ler*beg`\, n. [Turk. beglerbeg, fr. beg, pl. begler. See Beg, n.] The governor of a province of the Ottoman empire, next in dignity to the grand vizier.
Wiktionary
beglerbeg
n. The governor of a province of the Ottoman Empire, ranking immediately below the grand vizier.