Gnaeus Pompeius Magnus
Pompey had expanded the Roman Empire in East Asia, and held his second consulship in 55 B.C.
He was now a close ally of Caesar's and had married his daughter, Julia, in 59 B.C.

Catullus denounces Caesar and Pompey, referring to the latter as "cinaedus Romulus (sodomite Romulus)":
Poem 29
QVIS hoc potest uidere, quis potest pati
Other poems with references to Pompey:
Poem 55
ORAMVS, si forte non molestum est

Poem 113
CONSVLE Pompeio primum duo, Cinna, solebant

(From the image collection of Jeremy Walker at VRoma)