Research Notes:
"Henry de Ferrers, 5th baron of Groby, b. Apr. 16th, 1357, summoned from Aug. 4th, 1377, to Dec. 17th. 1387. He m. Joan, dau. of lord Poynings; by whom he had, William Ferrers". [1]
Douglas Richardson states, [2]
Henry de Ferrers, Knt., 4th Lord Ferrers of Groby, of Groby (in Ratby), Leicestershire, Bloton and Chorley, Lancashire, etc. son and heir [of William de Ferrers, Knt., 3rd Lord Ferrers of Groby, by Margaret de Ufford] born in the Abbey of Tilty 16 Feb. 1355/6, and baptized at Stebbing, Essex. he was a legatee in the 1368 will of his father, who bequeathed him his green bed "with my arms thereon." He married efore 27 April 1371 Joan de Poynings (or Ponynges), daughter of Luke de Paynings, Knt., 4th Lord Saint John of Basing, by Isabel (descendant of King John), daughter of Hugh de Saint John, 3rd Lord Saint John of Basing [see Paulet 9 for her ancestry]. They had two sons, William, Knt. [5th Lord Ferrers of Groby], and Henry, and one daughter Isabel. He was summoned to Parliament from 4 Aug. 1377 to 17 Dec. 1387, by writs directed Henrico de Ferrariis (or de Ferrers) de Groby. He accompanied Thomas of Woodstock, Earl of Buckingham, on his abortive military expedition to Brittany in 1380. He was co-heir in 1382 to his uncle, William de Ufford, K.G., 2nd Earl of Suffolk, Lord Ufford [see Norfolk 6.iii.e, Blackmere 9.i]. In 1385 he accompanied King Richard II in his invasion of Scotland. He was involved in the negotiation for the ransoming of Jean de Blois in 1387. He and his wife, Joan, and their two sons, William and Henry, were members of the Trinity Guild of Coventry, Warwickshire. Sometime before his death, he granted his lands and tenements in Chorley, Lancashire to John de Aldeleme, Katherine his wife, and John his son at a rent of eight marks. Sir Henry de Ferrers, 4th Lord Ferrers of Groby, died 3 Feb. 1387/8. His widow Joan, died 30 May 1394.
Nichols Hist. & Antiqs. of Leicestershire 3(1) (1800):121; 4(2) (1811):633* ("Sir Henry de Ferrers, of Groby; died 1388 = Johanna, daughter of Lucas lord Poynings").
Clutterbuch Hist. & Antiqs. of Hertford 1 (1815):360 (Ferrers ped.). Baker Hist. & Antiqs. of Northampton 1 (1822-30):103-104. Curtis Top. Hist. of Leicester (1i31):176. Nicolas Testamenta Vetusta 1 (1826):77 (will of William Ferrers). Top & Gen. 2 (1853):271-277 (Ufford ped.) Sussex Arch. Colls. 15 (1863):1-56. Elwes History of Castles, Mansions & Manors of Western Sussex (1876):40 (Poynings oed.). Genealogist n.s. 13 (1896):246-247. Norris Baddesley Clinton (1897):63-64 (*The windows at Baddesley are a treasure in themselves … In two large windows of the ahll opening on the courtyard are twelve shields of arms surmounted by earls' and barons' coronets, and having sinscriptions beneath indicating the alliances commemorated [including] … 11. Ferrers of Groby impaling Poynings. Barry of six, or and vert, on a bend gules, an annulet, argent; [inscription:] *Henry Ferrers the fifth lord Ferrers of Groby, married Joan, daughter of Lucas, lord Poynings."). 112-117. Wrottesley Peds. from the Plea Rolls (1905):104, 166, 200, 276. VCH Lancashire 6 (1911):129-149 (*A charter concerning dower lands in Bolton and Chorley [Lancashire] by Joan Lady Ferrers in 1397 [sic] is preserved in Add. MS 32104, no. 1656"). C.P. 5 (1926):333 (chart), 351-353 (sub Ferrers); 12 (1) (1953):433, footnote I (sub Suffolk), 14 (1998):321 (wife Joan used a seal with a shield of Ferrers impaling St. John, as used by Poynings). VCH Buckingham 4 (1927)
38-40. Harris Reg. of the Guild of the Holy Trinity, St. Mary, St. John the Baptist & St. Katherine of Coventry 1 (Dugdale Soc. 13) (1935):11, 102 (list of the members of Trinity Guild of Coventry: *Henry, Lord Ferers de Groby and Joan, his wife, William and Henry, their sons"). Paget Baronage of England (1957) 296:5 (sub Ferrers). Hector Westminster Chron. 1381-1394 (1982):188m., 300=301. Cal. IPM 17 (1988):77. Year Books of Richard II 2 (Ames Found. 3) (1996):161-163. Fenwick Pdl Taxes of 1377, 1379 & 1381 1 (Recs of Social & Economic Hist. n.s. 27) (1998):579 (sub Villade Groby, Leicestershire: "Henrico domino de feryrs de Groby/banaretto").
[1] Charles Ferrers Palmer, The history of the town and castle of Tamworth, in the counties of Stafford & Warwick (1845), 364, [HathiTrust].
[2] Douglas Richardson, Plantagenet Ancestry, 2nd edition, 3 vols. (Salt Lake City: Douglas Richardson, 2011), 1:530, [GoogleBooks].