Nonna of Nazianzus was a 4th-century Christian saint residing in the Roman province of Cappadocia. As the wife of Gregory the Elder, she is credited with converting her husband to the Christian faith. She was the mother of three children, including the prominent saint Gregory the Theologian, as well as Caesarius and Gorgonia. Throughout her life, she was recognized for her profound piety and spiritual strength, qualities that her son later highlighted when describing her character and her role as a devoted mother.