
Ancient
Augusta and Regent of the Byzantine Empire
In 414 AD, at the age of only fifteen, Aelia Pulcheria took a public vow of chastity, a move that was as much a political masterstroke as a religious one. By doing so, she became the Augusta and the de facto ruler of the Byzantine Empire, governing on behalf of her younger brother, Theodosius II.
Pulcheria remained the most powerful figure in the empire for decades. Her life is a study in how ancient women could navigate a patriarchal world by weaponizing the societal expectations of female virtue. By embracing a life of religious devotion, she secured a level of political stability that few emperors managed to achieve through military might alone.
https://en.wikipedia.org/wiki/Pulcheria