Sibyl de Neufmarché [SEP] country of citizenship
Richard III. By way of Edward's daughter, Elizabeth of York, every monarch of England and, subsequently, the United Kingdom, from Henry VIII up to and including Elizabeth II, descended from Sibyl de Neufmarché, as did the various royal sovereigns of Europe who shared a common descent from Mary, Queen of Scots.
Sibyl de Neufmarché
Sibyl de Neufmarché, Countess of Hereford, "suo jure" Lady of Brecknock (c. 1100 – after 1143), was a Cambro-Norman noblewoman, heiress to one of the most substantial fiefs in the Welsh Marches. The great-granddaughter of Gruffydd ap Llywelyn, king of Wales, Sibyl was also connected to the nobility of England and Normandy.
Sibyl inherited the titles and lands of her father, Bernard de Neufmarché, Lord of Brecon, after her mother, Nest ferch Osbern