She is the deaconess of the Church of Favonius and a prominent "idol" after learning about them from the intrepid adventurer Alice. She is also the younger sister of the Acting Grand Master Jean. The Deaconess of the Favonius Church and a shining starlet adored by all. Although the concept of a starlet is rather novel in a city of bards, the people of Mondstadt love Barbara nonetheless. "I owe everything to the city's spirit of freedom" — Barbara, regarding her popularity.