Livy 1.7: stolen cattle.

When Romulus founded Rome, he sacrificed to various gods and also to Hercules at the very place where Hercules was said to have crossed the Tiber, after he had killed the giant Geryon and got hold of his cattle. But after he had driven the herd across the Tiber, he fell asleep and another giant, Cacus stole the most beautiful cows. In order to deceive Hercules, not the brightest anyway, Cacus drew those cows backwards at their tails, so Hercules, following their footprints, might think they had disappeared miraculously. Of course it ends well and Cacus is killed.

There is not a single trace in Greek mythology hinting that Hercules had ever visited Italia, but the Romans were very good in cultural appropriation, especially when it came to claiming Greek gods. Thus far Italy has never compensated Greece for this injustice.

Livius  1.7, 4-7

Herculem in ea loca Geryone interempto boves mira specie abegisse memorant, ac prope Tiberim fluvium, qua prae se armentum agens nando traiecerat, loco herbido ut quiete et pabulo laeto reficeret boves, et ipsum fessum via procubuisse. Ibi cum eum cibo vinoque gravatum sopor oppressisset, pastor accola eius loci, nomine Cacus, ferox viribus, captus pulchritudine boum cum avertere eam praedam vellet, quia, si agendo armentum in speluncam compulisset ipsa vestigia quaerentem dominum eo deductura erant, aversos boves, eximium quemque pulchritudine, caudis in speluncam traxit. Hercules ad primam auroram somno excitus cum gregem perlustrasset oculis et partem abesse numero sensisset, pergit ad proximam speluncam, si forte eo vestigia ferrent. Quae ubi omnia foras versa vidit nec in partem aliam ferre, confusus atque incertus animi ex loco infesto agere porro armentum occepit. Inde cum actae boves quaedam ad desiderium, ut fit, relictarum mugissent, reddita inclusarum ex spelunca boum vox Herculem convertit. Quem cum vadentem ad speluncam Cacus vi prohibere conatus esset, ictus claua fidem pastorum nequiquam invocans morte occubuit.

The first sentence is complicated and I have restructured it a bit to make it clear. However there is something more which is understandable in Latin, but difficult to translate: loco herbido is both the place where Hercules leads the cattle to and where they and he are resting: et ipsum `and he himself too’.

memorant, Geryone interempto, Herculem…abegisse ac (= et). Tiberim (qua…traiecerat)…, ut…reficeret,.. procubuisse

memorant: people remember/ it is said (both with abegisse and procubuisse)

in ea loca: i.e. the places where Romulus was sacrificing 

interimo interemo interemptus: to kill

mira specie: ablative of description, species = beauty

abigo abegi, abactum: to drive away

prope (+ acc.): near

qua: across which

armentum: cattle

prae se agens: driving before him

no: to swim

herbidus: grassy

pabulum: food, fodder

laetus: luxuriant

reficio refeci refectum: to restore, refresh

fessum via: tired by the journey

procumbo procubui procubitum (-ere): to fall down

cibus: food

sopor (m.): deep sleep

accola: a dweller nearby

cum captus

boum: gen. plur. of bos

eam praedam: it as booty

averto averti adversum: to take away

quia…traxit

spelunca: cave

compello compuli compulsum: to drive together

ipso vestigia eo deductura erant: the very footprints would lead to that place (deductura erant = deduxissent)

aversos boves: the cows turned the other way around

eximium quemque pulchritudine: apposition with boves

eximius: excelling, distinguished

cauda: tail

grex grecis (f.): herd

perlustro: to view all over, examine

forte: by chance

quae (vestigia)

foras versa: turned to the outside

infestus: inimical, hostile

porro: farther, further on

occipio occepi occeptum: to begin

actae: driven

ad desiderium relictarum: for longing for those left behind

mugio mugivi: to bellow

reddo reddidi redditum: to return

quem vadentem: him (= Hercules) going

conor conatus: to try

ico/icio ici ictus: to hit (in classical prose only the ppp is used)

clava: club

fidem: help

nequiquam: in vain

occombo occubui occubitum: to fall in death

 Translation by H.G. Bohn (1853) (note that this translation takes some liberties.)

There is a tradition, that Hercules, having killed Geryon, drove his oxen, which were extremely beautiful, into those places; and that, after swimming over the Tiber, and driving the cattle before him, being fatigued with travelling, he laid himself down on the banks of the river, in a grassy place, to refresh them with rest and rich pasture. When sleep had overpowered him, satiated with food and wine, a shepherd of the place, named Cacus, presuming on his strength, and charmed with the beauty of the oxen, wished to purloin that booty, but because, if he had driven them forward into the cave, their footsteps would have guided the search of their owner thither, he therefore drew the most beautiful of them, one by one, by the tails, backwards into a cave. Hercules, awaking at day-break, when he had surveyed his herd, and observed that some of them were missing, goes directly to the nearest cave, to see if by chance their footsteps would lead him thither. But when he observed that they were all turned from it, and directed him no other way, confounded, and not knowing what to do, he began to drive his cattle out of that unlucky place. Upon this, some of the cows, as they usually do, lowed on missing those that were left; and the lowings of those that were confined being returned from the cave, made Hercules turn that way. And when Cacus attempted to prevent him by force, as he was proceeding to the cave, being struck with a club, he was slain, vainly imploring the assistance of the shepherds.