In the following year, he served as the main witness for the defense in the trial against his friend, the poet Licinius Archias, in which Cicero gave his famous speech in defense of Archias' claims to Roman citizenship. Later, in 58 and 57 BC, Marcus Lucullus belonged to the group that worked behind the scenes to enable Cicero's return from exile.
In the following year, he served as a key witness in the defense of his friend, Licinius Archias, against whom Cicero delivered his famous speech in defense of Archias' claims to Roman citizenship. Later, in 58 and 57 BC, Marcus Lucullus was part of the group that worked behind the scenes to facilitate Cicero's return from exile.