Quintus Sosius Senecio

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Quintus Sosius Senecio (fl. 1st century) was a Roman senator, and twice consul.

He was quaestor in Achaea in the 80s AD and tribune and praetor in the 90s. Seneco was governor of Gallia Belgica for the term 96-98.[1] He became consul ordinarius in 99. During the Dacian Wars, he held the governorship of Moesia Superior.[2] Afterwards he earned a second consulate in 107 as well as a statue at state expense.

Senecio is probably the same person who was a friend of the Pliny the Younger (Ep. i. 13), and whom Plutarch addresses in several of his lives. (Theseus, 1, Demosth. 1, Brut. 1). He is also the addressee of Plutarch's Quaestiones conviviales and Quomodo quis suos in virtute sentiat profectus, as well as potentially referenced in De primo frigido, where Plutarch speaks of Trajan's expedition on the Danube (949e) during the Second Dacian War.

Senecio married the daughter of Sextus Iulius Frontinus a three-time consul (cos. 97, 98, 100).[3] They had a daughter, Sosia Polla, who married Quintus Pompeius Falco.


  1. ^ Werner Eck, "Jahres- und Provinzialfasten der senatorischen Statthalter von 69/70 bis 138/139", Chiron, 12 (1982), pp. 328-330
  2. ^ Eck, "Jahres- und Provinzialfasten", pp. 336-340
  3. ^ Ronald Syme, "Ummidius Quadratus, Capax Imperii", Harvard Studies in Classical Philology, 83 (1979), p. 295


Political offices
Preceded by
Imp. Caesar Nerva Augustus IV,
Imp. Caesar Nerva Traianus II
Consul of the Roman Empire
with Aulus Cornelius Palma Frontonianus
Succeeded by
Imp. Caesar Nerva Traianus Augustus III,
Sextus Julius Frontinus III
Preceded by
Lucius Ceionius Commodus,
Sextus Vettulenus Civica Cerialis
Consul of the Roman Empire
with Lucius Licinius Sura III
Succeeded by
Appius Annius Trebonius Gallus,
Marcus Appius Bradua