Wife of Ernest, the 19th Earl. "Their relationship was fraught with... well, everything," to quote Sylvester, "but at least his plays always had excellent costuming." She "really liked clothes," and had them brought in from all over the world.
Her love of clothes extended to a certain fanaticism about preserving them, resulting in the mansion residents having a plentiful (if rather out of fashion) stock of staff uniforms, formal clothes, and perhaps others many decades after her time. Other people added to her collection, for instance Philbert's wife, Hebzibah.