Faustina the Younger

Annia Galeria Faustina the Younger (c. 130 AD, – 175/176 AD) was Roman empress from 161 to her death as the wife of emperor Marcus Aurelius, her maternal cousin. Faustina was the youngest child of emperor Antoninus Pius and empress Faustina the Elder. She was held in high esteem by soldiers and her husband as Augusta and Mater Castrorum ('Mother of the Camp') and was given divine honours after her death.

Source: Wikipedia — https://en.wikipedia.org/wiki/Faustina_the_Younger