Censorinus (died 53 BC)
The others are an Antonius who is either the famous Marcus Antonius or one of his two brothers , Gaius or Lucius; Cassius Longinus and his brother Lucius; and Quintus Mucius Scaevola ( tribune of the "plebs" in 54 BC ) . 
<triplet> Marcus Antonius <subj> Gaius <obj> sibling <subj> Lucius <obj> sibling <triplet> Gaius <subj> Marcus Antonius <obj> sibling <subj> Lucius <obj> sibling <triplet> Lucius <subj> Marcus Antonius <obj> sibling <subj> Gaius <obj> sibling