heritress

plural heritresses

1. A female heritor.

   One of those archdukes married the Heritress of the Netherlands.

   1880, E. Illingworth, “Pictures from History. The ‘Holy Office’ in the Netherlands.”, in The Primitive Methodist Magazine, for the Year of Our Lord 1880, volume III (of the new series); LXI (from the commencement), London: […] Ralph Fenwick, […], page 92

   2 more examples

   The mightiest monarch of his age, Sovereign of England—as his proud grandsire made his vaunt of yore—by right of the sword’s edge; Grand Duke of Normandy, by privilege of blood; and liege-lord of Guienne, by marriage with its powerful Heritress;

   1839 February, H[enry] W[illiam] Herbert, “The Saxon Prelate’s Doom”, in The Ladies’ Companion, a Monthly Magazine, Embracing Every Department of Literature, volume X, New York, N.Y.: William W. Snowden, page 154, column 1

   M. and Madame Chateauneuf were delighted with the child, observing that ‘she spoke Latin, French, and Italian well, sufficiently handsome in the face, and without doubt the lawful heritress of the kingdom, if James of Scotland be excluded.’

   1881, Biographical Catalogue of the Portraits at Longleat in the County of Wilts the Seat of the Marquis of Bath, London: Elliot Stock, pages 177–178

   Synonyms: heiress, heritrix