quonam modo ille furenti fratri suo [some manuscripts:patrueli] consularis restitisset, qui consul eum incipientem furere atque tonantem sua se manu interfecturum audiente senatu dixerit?
How would that consular [i.e.Q. Metellus Celer] have resisted the madness of hiscousin [brotherfrom his father’s sister; i.e.P. Clodius Pulcher[1]]—he, who when he was consul and [his cousin] was beginning his ravings and thundering forth, said before the listening Senate that he would slay him with his own hand?
^Gelzer, Matthias (1968),Caesar: Politician and Statesman,→ISBN,page77, note 2: “Clodius is described as Celer’s cousin (frater) because Clodius’ father[…] was married to Metella, the sister of Celer’s father”