Sources

1) Source: Exchequer: Treasury of Receipt: Ancient Deeds, Series A "Release by Richard le Swein of Swithelund, to Margaret de Ferr[ariis], countess of Derby, Ellen la Zuche, ALexander Comyn, earl of Bouchan, and Elizabeth his wife, the heirs of Roger de Quency, late earl of Winchester,"Dated: After 1264. External Link
http://discovery.nationalarchives.gov.uk/details/r/C4944648. Reference: E 40/5895 (Data from direct source)
2) Source: Chancery: Inquisitions Post Mortem, Series I, Henry III "Roger de Quency, earl of Winchester: Yorkshire: Elmsall manor; Bedfordshire: Stevington; Northamptonshire: Wadenhoe manor with advowson; Nottinghamshire: Kneesall manor; [Yorkshire]: Elmsall manor"Dated: 1264. External Link
http://discovery.nationalarchives.gov.uk/details/r/C9755501. Reference: C 132/31/2 (Data from direct source)
3) Source: Chancery: Inquisitions Post Mortem, Series I, Edward I "Joan, late the wife of Humphrey de Boun alias de Bohun...held of Helen de la Suche, one of the heirs of Roger de Quincy, sometime earl of Winchester,..Ware. The manor (extent given), held of Sir William [de Ferr] ar[iis] by service of ½ mark yearly, for Margaret countess of Fer[rars], mother of the said William, gave him the manor of Groby to which the manor of Ware pertains." Date: 1283. External Link
https://www.british-history.ac.uk/inquis-post-mortem/vol2/pp315-323. Reference: C 133/39/10 (Data from direct source)