Robert Eyre, son of William Eyre and Elizabeth Wickersley, married Margaret, daughter of Inkersal of Brimington [Derbyshire]. They had daughter Margery, among other children.
Uncle Robert Eyre had descendants named Robert, which makes it confusing to identify documents related to this Robert Eyre. Some of the notes below might refer to this Robert Eyre:
1476 Award of John Lynacre, esq., and John Parker, of Norton Lees, and Robert Eyre, esq., and Edmund Levett, arbitrators between William Croft, sen., of Brampton, and William Croft, jun., of the same, adjudging that the former should have his choice whether or not to take 5 marks for his right to certain lands in the lordship of Asshford, and notifying to Henry Vernon, steward of Asshford, etc., his refusal. Dat. Chesterfield, 20 June, 16 Edw. IV. . (Foljambe.) 
1479 "Manor of Hope. Admission of Robert Eyre, esq., as tenant of a messuage and land on the surrender of John Sylverlok, at a court of the Dean and Chapter of Lichfield held Th. a. F. of St. Laurence [10 Aug.], 19 Edw. IV. . (Foljambe.)" 
1481 Robert Eyre was sheriff of Derbyshire. 
1501 "16 Henry VII, Robert Eyre, of North Legh, cousin and heir of William Eyre, of Sheffield." 
(1321, Inkersal) Saturday next before the Feast of Saint Laurence Martyr (10th August), in the 15th year of Edward (II) son of King Edward. Charter (Lat), dated at Staveleye, confirming a grant from Robert Smith (Faber) of Ducmonton to William Smith (Faber) his brother of Staveleye, of two roods of arable land lying in the western fields of Staveley, of which one rood lay above Gossecroft, between land formerly of Ralph de Worteleye and land of the rector of the church, and the other rood lay near Hynkersuldyck, between lands of Ralph de Worteley and lands of Richard de Hyllion. Witnesses: Adam of Norton, Roger Cashors, Roger de Hynkersul, Nicholas bailiff, Robert clerk. Vellum: one skin 8 X 2f, seal missing. 
 Joseph Hunter, ed. and John W Clay, Familiae Minorum Gentium, Vol. 2, Publications of the Harleian Society, Vol. 38 (London: 1895), 544, of 543-545, MS 226, 227, [GoogleBooks], [InternetArchive].
 Isaac Herbert Jeayes for Sir Henry Howe Bemrose, Descriptive catalogue of Derbyshire charters in public and private libraries and muniment rooms (London: Bemrose & Sons, 1906), 12, Item 100, [GoogleBooks], [HathiTrust], [InternetArchive].
 Isaac Herbert Jeayes for Sir Henry Howe Bemrose, Descriptive catalogue of Derbyshire charters in public and private libraries and muniment rooms (London: Bemrose & Sons, 1906), 178, Item 1445, [GoogleBooks], [HathiTrust], [InternetArchive].
 Thomas Noble, ed., The history, Gazeteer, and Directory of the county of Derby: drawn up from actual observation, and from the best authorities; containing a variety of geological, mineralogical, commercial and statistical information, Vol. 1 (Stephen Glover, 1829), Appendix, 19, right column, [HathiTrust], [HathiTrust].
 John Pym Yeatman, Sir Geo. R. Sitwell, and Cecil J. S. Foljambe, The Feudal History of the County of Derby; (chiefly during the 11th, 12th, and 13th centuries), Vol. 2 (London: Printed for the author, 1890), 399, [HathiTrust].
 T Walter Hall and A Herman Thomas, The City of Sheffield Descriptive Catalogue of the Charters, Rolls, Deeds, Pedigrees, Pamphlets, Newspapers, Monumental Inscriptions, Maps, and Miscellaneous Papers forming the Jackson Collection, Sheffield (1914), 112, of 112-3, [InternetArchive].