Liscus
Person
Gallic War 1.16 supplies the first indexed source portrait: “… When he saw that he was put off too long, and that the day was close at hand on which he ought to serve out the corn to his soldiers;-having called together their chiefs, of whom he had a great number in his camp, among them Divitiacus and Liscus who was invested with the chief magistracy (whom the Aedui style the Vergobretus, and who is elected annually …”
Named form in selected editions; identity established only to the extent of the cited context.
Gallic War 1.16
Caesar
… When he saw that he was put off too long, and that the day was close at hand on which he ought to serve out the corn to his soldiers;-having called together their chiefs, of whom he had a great number in his camp, among them Divitiacus and Liscus who was invested with the chief magistracy (whom the Aedui style the Vergobretus, and who is elected annually and has power of life or death over his countrymen), he severely reprimands them, because he is not assisted by them on so urgent an occasion, when the enemy were so close at hand, and when [corn] could neither be bought nor taken from the fields, particularly as, in a great measure urged by their prayers, he had undertaken the war; much more bitterly, therefore does he complain of his being forsaken.
Gallic War 1.17
Caesar
Then at length Liscus, moved by Caesar's speech, discloses what he had hitherto kept secret:-that there are some whose influences with the people is very great, who, though private men, have more power than the magistrates themselves: that these by seditions and violent language are deterring the populace from contributing the corn which they ought to supply; [by telling them] that, if they can not any longer retain the supremacy of Gaul, it were better to submit to the government of Gauls than of Romans, nor ought they to doubt that, if the Romans should overpower the Helvetii, they would wrest their freedom from the Aedui together with the remainder of Gaul. …
Gallic War 1.18
Caesar
Caesar perceived that by this speech of Liscus, Dumnorix, the brother of Divitiacus, was indicated; but, as he was unwilling that these matters should be discussed while so many were present, he speedily dismisses: the council, but detains Liscus: he inquires from him when alone, about those things which he had said in the meeting. …