Aurelia

Aurelia is the wife of Lamprecht and a niece of Aub Ahrensbach.

Aurelia has blonde hair and a pair of naturally sharp, narrow eyes in a shade of deep green, which gives many people the impression of her being evil and scheming. Her face is nearly identical to how Lady Gabriele looked when she married into Ehrenfest.

She is quite tall for a woman, making her a good fit to stand beside a muscular knight like Lamprecht in Rozemyne's opinion.

(Source: Ascendance of a Bookworm Wiki)