Reginald had an elder brother, Thomas West, 2nd Baron West. There was also a younger brother, John, and a sister Joan. His sister Joan married first, Richard Delabere, and second, William Catesby.
Reginald was knighted at some time before 1416, and on 22 November of that year had livery of the lands inherited from his brother, Thomas West, 2nd Baron West.[2][4]
During the wars in France, Reginald was captain of the castle of Saint Lo in the Cotentin in Normandy in March 1418 and in April 1421. Reginald was also captain of the fort of La Motte on 5 December 1419.[2][4] On 21 June 1427 he had livery of the lands to which he was entitled as heir general of his uncle, Thomas la Warr, 5th Baron De La Warr.[2][4]
Reginald was summoned to Parliament from 15 July 1427 to 3 August 1429 as Reginaldo la Warre chivaler, and from 25 February 1432 to 23 September 1439 as Reginaldo West chivaler. In October 1427 he petitioned the King and Council 'that he might sit in Parliament with the precedence held by his ancestors, Lords la Warre, who had continually attended Parliament since 27 Edward I'.[2][4]
In 1430 and 1431 he was in France with the King. In 1435 he was appointed Justice of the Peace for Sussex. On 10 December 1446 he had licence to travel to Rome with a retinue of 24 servants, and on 13 December had a similar licence to travel to the Holy Land. On 14 October 1448, he was to have gone abroad 'on the King's affairs'.[2][4]
West married firstly, before 17 February 1429, Margaret Thorley, daughter of Robert Thorley, esquire, of Tybeste, Cornwall, and his first wife, Anne de la Pole, widow of Sir Gerard de Lisle, and daughter of Michael de la Pole, 1st Earl of Suffolk, by whom he had two sons and five daughters:[4][5]
Margaret West (c.1424),[citation needed] who married Sir Thomas Echingham (d. 20 January 1486) of Etchingham, Sussex, by whom she had three daughters.[9][8]
Mary West (d. 24 July 1473), who married, as his second wife, Sir Roger Lewknor (d. 4 August 1478) of Broadhurst in Horsted Keynes, Sussex, by whom she had three sons.[11][8]
He married secondly, before 19 November 1443, Elizabeth Greyndour (d. 1 September 1452),[12] daughter and heir of Robert Greyndour (d.1443),[citation needed] esquire, of Clearwell, Gloucestershire, by whom he had a daughter named Mary or Anne (b. 1450) who married Sir Roger Lewknor. After West's death, his widow married John Tiptoft, 1st Earl of Worcester, who was beheaded on Tower Hill 18 October 1470.[12][4]
^Stourton, Charles Botolph Mowbray, Baron Stourton History of the Noble House of Stourton, of Stourton, in the County of Wiltshire Printed privately by E. Stock London 1899
Richardson, Douglas (2011). Everingham, Kimball G. (ed.). Magna Carta Ancestry: A Study in Colonial and Medieval Families. Vol. I (2nd ed.). Salt Lake City. pp. 182–3. ISBN978-1449966379.{{cite book}}: CS1 maint: location missing publisher (link)
Richardson, Douglas (2011). Everingham, Kimball G. (ed.). Magna Carta Ancestry: A Study in Colonial and Medieval Families. Vol. II (2nd ed.). Salt Lake City. pp. 102, 173–4. ISBN978-1449966386.{{cite book}}: CS1 maint: location missing publisher (link)
Richardson, Douglas (2011). Everingham, Kimball G. (ed.). Magna Carta Ancestry: A Study in Colonial and Medieval Families. Vol. III (2nd ed.). Salt Lake City. pp. 19–20. ISBN978-1449966393.{{cite book}}: CS1 maint: location missing publisher (link)
Richardson, Douglas (2011). Everingham, Kimball G. (ed.). Magna Carta Ancestry: A Study in Colonial and Medieval Families. Vol. IV (2nd ed.). Salt Lake City. pp. 317–19. ISBN978-1460992708.{{cite book}}: CS1 maint: location missing publisher (link)
Paternal Great-grandmother: Eleanor Cantelupe/Cantelou (first cousin of William de Cantelou and daughter of Margaret de Mohun, descendant of William de Mohun)
Paternal Grandmother: Alice Fitzherbert
Paternal Great-grandfather: Either Edmund Fitzherbert or Reginald Fitzherbert
Paternal Great-grandmother: Unknown
Mother: Joan la Warr
Maternal Grandfather: Roger la Warr, 3rd Baron la Warr