Pernel (Petronilla) de Ferrers Lady of Stafford

✓ Pernel, 'da. of William (de Ferrieres), 3rd Earl of Derby, by Sibyl, da. of William de Braiose' (CP XII/1 'Stafford' p.171, n.(f) 'She was sis. of the contemporary Earl of Derby'); m. in or before 1214 Hervey de Stafford (d. 1237); survived him and was bur. at Stone. Her parents are already in this tree (F100123, wired w59) - RING 27 Oct 2026: the Staffords and the later Earls of Derby descend from the same Ferrers-Braose marriage. Mother of Robert de Stafford. Source: Complete Peerage 2nd ed. vol. XII part 1 (1953), 'Stafford' pp.171-172 and notes (page images supplied by Aynsley, 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.]