6. L. Manilius
, praetor probably in B. C. 79, had the government of Narbonese Gaul, with the title of proconsul, in B. C. 78.
In the latter year he crossed over into Spain, with three legions and 1500 horse, to assist Metellus in the war against Sertorius; but he was defeated by Hirtuleius, one of the generals of Sertorius, lost his camp and baggage, and escaped almost alone into the town of Ilerda. (Oros. 5.22
; Liv. Epit. 90
; Plut. Sert. 12