Griselda was Xenovia's swordmaster and legal guardian during her time in the Church. Griselda treats Xenovia like a younger sister and was angry with her for becoming a Devil without thinking, but still continues to care for her. Xenovia, on the other hand, is shown to be extremely fearful of her, but still cares for Griselda as much as Griselda does for her.
Irina's superior. Irina respects Griselda calling her "Boss" but like Xenovia, she is shown to be somewhat scared of Griselda too.
Griselda is shown to be the only person in D×D that is able to control Dulio.