Flavia Iulia Constantia (c. 295–c. 330 CE) was the daughter of Theodora and Constantius I, younger half sister of Constantine I, wife of the emperor Licinius (Valerius Licinianus Licinius Augustus) and mother of one son, Licinius (c. 315–326 CE). Constantia’s political influence began with a remarkable diplomatic feat: she fostered peace between her husband Licinius and half brother Constantine I through eigh…