Quintus Caecilius Metellus Pius
Around 91 BC Livianus succeeded his brother Marcus Livius Drusus as one of the pontifices in the College of Pontiffs. He served with distinction in the Social War (91–87 BC), probably serving as legate under Quintus Caecilius Metellus Pius. He achieved some victories, most notably he was credited with killing the general of the Marsi, Quintus Poppaedius Silo, during the storming of Venusia.