Quintus Flavius Egnatius Placidus Severus
Quintus Flavius Egnatius Placidus Severus (c. 335 - aft. 365) was a Roman politician.
He was the son of Lollianus Mavortius and wife Cornelia Severa.
He was Vicarius Urbi in 365.
He married Antonia Marcianilla, born c. 340, and had a daughter Egnatia Avita Severa, born c. 355, married to Flavius Eparchius Philagrius, and a son Flavius Egnatius, born c. 360, who married and had a son Flavius Avitus Marinianus.
- Christian Settipani. Continuité gentilice et continuité sénatoriale dans les familles sénatoriales romaines à l'époque impériale, 2000[page needed]