General Notes

Lord High Treasurer (Prime Minister)
Chancellor and Under Treasurer of the Exchequer
"The family Harley is one of the twelve included in Drummond's 'Noble British Families'.- This extraordinarily worded Earldom, "Earl of Oxford and Earl of Mortimer", is but one title and paid the fees as such. There was no descent from the Veres and apparently none from the Mortimers, but the title Oxford may have been chosen because the grantee's grandmother (Brilliana Conway, wife of Sir Robert Harley, K.B.) was niece of the wife of Horatio de Vere, Baron Vere of Tilbury, who was gradson of the 15th Earl of Oxford (John de Vere). For comments on the precipitancy with which the Crown countenanced the taking of this great name and dignity before there was absolute proof that no member of the de Vere family still existed with a possible claim to it. According to Edward Harley, his brother was "so cautios in this matter, that to prevent any slur on her Majesty or himself, he took with it [Oxford] the title of Mortimer, to which family he was allied by blood". Such a connection-though untraced-is posible, for the Bramptons (whose heiress Margaret, married before 1309, Robert Harley, the Earl's ancestor) held of the Mortimers in Herefordshire and Salop. The Castle of Wigmore, formely the Caput Baroniae of the Mortimers, is adjacent to Brampton and was bought by Thomas Harley of Brampton for 2,600 pounds sterling in Jan. 1601/2."
Sources:
- person: ppmr (The Complete Peerage by G.E.C., 1945 Volume 10, p.263/4)
- family 1: H.R.Moser/Burke-ext/ppmr (The Complete Peerage by G.E.C., 1945 Volume 10, p. 265)
- family 2: ppmr (The Complete Peerage by G.E.C., 1945 Volume 10, p.265) "

(See below for my sources"
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SOURCES: LDS FHL Ancestral File #   (familysearch.org)
WEB:
"Ancestors/Descendants of Royal Lines" (Contributors: F. L. Jacquier (History of Charlemagne by Christian Settipani); L. Orlandini,  Manuel Abranches de Soveral, Reynaud de Paysac, F.L.  J P de Palmas (Aurejac et Tournemire; Frankish line; The Complete Peerage}, Jacquier (Genealogy of Lewis Carroll, Justin Swanstrom, The Royal Families of England Scotland & Wales by Burkes Peerage; Debrett's Peerage & Baronage; Table of descendants French Canadian Genealogical Society; Families of Monfort-sur-Risle & Bertrand de Bricquebec; The Dukes of Normandy, XXXXI), A. Brabant ("Dynastie Montmorency, Michel d'Herbigny), Paul Leportier, Claude Barret, H.R. Moser (Burke Peerage), O.Guionneau, L.B. de Rouge, E. Polti, N. Danican (Britain's Royal Families; Buthlaw, Succession of Strathclyde, the Armorial 1961-62) A.Terlinden (Genealogy of the existing British Peerage, 1842), L. Gustavsson, C. Cheneaux, E. Lodge, S. Bontron (Brian Tompsett), R. Dewkinandan, H. de la Villarmois, C. Donadello; Scevole de Livonniere, H. de la Villarmois, I. Flatmoen, P. Ract Madoux (History of Morhange; Leon Maujean; Annuaire de Lorraine, 1926; La Galissonniere: Elections d'Arques et Rouen), Jean de Villoutreys (ref: Georges Poull), E. Wilkerson-Theaux (Laura Little), O. Auffray, A. Brabant (Genealogy of Chauvigny of Blot from "Chanoine Prevost Archiviste du Diocese de Troyes Union Typographique Domois Cote-d'Or 1925), Emmanuel Arminjon (E Levi-Provencal Histoire de l'Espagne Andalouse),  Y. Gazagnes-Gazanhe, R. Sekulovich and J.P. de Palmas ("notes pierfit et iconographie Insecula", Tournemire), H de Riberolles (Base Tournemire), Franck Veillon; ,(Histoire Généalogique de la Maison de Hornes, Bruxelles 1848; Notice Historique Sur L'Ancien Comté de Hornes, Gand 1850; Europäische Stammtafeln, Marburg 1978); E.Driant / "La Maison de Damas" par Hubert Lamant, 1977 (Bibliothèque municipale d'Eaubonne)
........... http://geneastar.org.