Note 050
Montesquieu (The Spirit of Laws, 1. xv. c. 13) mentions and approves the law of the Visigoths (l. ix. tit. 2, in tom. iv. p. 425), which obliged all masters to arm and send or lead into the field a tenth of their slaves.
The History Of The Decline and Fall Of The Roman EmpireVolume 1Chapter 38