A public proclamation or edict; a summons by public proclamation. Chiefly, in early use, a summons to arms.
Bans is common and ordinary amongst the Feudists, and signifies a proclamation, or any public notice.
The gathering of the (French) king's vassals for war; the whole body of vassals so assembled, or liable to be summoned; originally, the same as arrière-ban: in the 16th c., French usage created a distinction between ban and arrière-ban, for which see the latter word.
France was at such a Pinch..that they call'd their Ban and Arriere Ban, the assembling whereof had been long discussed, and in a manner antiquated.
He has sent abroad to assemble his ban and arriere ban.
The Ban and the Arrierban are met armed in the field to choose a king.
The act of calling together the vassals in armed array, was entitled ‘convoking the ban.
The ban was sometimes convoked, that is, the possessors of the fiefs were called upon for military services.