Sibyl de Tregoz Lady Grandison

✓ Sibyl, 'da. and coh. of Sir John Tregoz, of Ewyas Harold [Lord Tregoz], by his 1st wife, Mabel, da. of Sir Fulk FitzWarin'; wife of William, 1st Lord Grandison; on her father's death the lands were divided 1300-02 between her husband and John la Warre, the other coheir; 'His wife d. 21 Oct. 1334, and was bur. at Dore Abbey' - her son Bishop Grandison's register records 'pro obitu Domine Sibelle matris nostre in Festo Undecim Milium Virginum' and calls her 'Anglica genere': CP VI 'Grandison' pp.61-62 and notes. Mother of Katherine, Countess of Salisbury (CP VI p.68, 'Undoubtedly by Sibyl'). Source: Complete Peerage 2nd ed. vol. VI (1926), 'Grandison' pp.60-68 and notes (archive.org completepeerageo06coka_0), read 27 Oct 2026. [DIRECT ANCESTOR OF THE COMPILER: flag added 27 Oct 2026 by walking the tree from Aynsley, so that this marker is reliable and can be searched.] ||27 Oct 2026 - NOTE|| Her father's parents (Robert de Tregoz d.1268 x Juliane de Cauntelo) and the Ewyas-Hereford-Wessex line above her grandmother Sibyl de Ewyas wired today from CP XII/2 'Tregoz' and Medieval Lands; her mother Mabel's FitzWarin line wired at ~. Source: Complete Peerage 2nd ed. vol. XII part 2 (1959), 'Tregoz (of Ewyas Harold)' pp.16-21 and notes (page images supplied by Aynsley, read 27 Oct 2026).