BEG, or BEY, in the Turkish affairs. See BEY. BEG is more particularly applied to the lord of a banner, called also in the same language sangiak-beg. A beg has the command of a certain number of the spahis, or horse, maintained by the province under the denomination of timariots. All the begs of a province obey one governor-general called begler-beg, or beyler-beg, q. d. lord of lords or of the begs of the province.