As his marriage to Margaret had proved childless, Elisabeth inherited the County of Vermandois, which she ruled over jointly with her husband; this pushed Flemish authority further south, to its greatest extent thus far, and threatened to completely alter the balance of power in northern France.
Ketika pernikahannya dengan Marguerite terbukti tanpa anak, Elisabeth mewarisi County Vermandois, yang ia perintah bersama suaminya; ini mendorong otoritas Flemish lebih jauh ke selatan, dan mengancam untuk sepenuhnya mengubah keseimbangan kekuasaan di Prancis utara.