Nielsen Hayden genealogy
John de St. John
Bef 1196 - Bef 1230 (< 34 years)-
Name John de St. John Birth Bef 1196 [1] Gender Male Death Bef 23 Jan 1230 [1] Person ID I19912 Ancestry of PNH, TNH, and others Last Modified 4 Nov 2017
Father Roger de St. John d. Bef Jun 1214 Mother Cecily de Lucy Family ID F12419 Group Sheet | Family Chart
Family Emma d. Aft Nov 1265 Children 1. Roger de St. John, b. Between 1215 and 1222 d. 4 Aug 1265, Evesham, Worcestershire, England 
(Age ~ 50 years)Family ID F12418 Group Sheet | Family Chart Last Modified 4 Nov 2017
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Sources - [S128] The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant ed. Vicary Gibbs, H. A. Doubleday, Duncan Warrand, Howard de Walden, Geoffrey H. White and R. S. Lea. 2nd edition. 14 volumes (1-13, but volume 12 spanned two books), London, The St. Catherine Press, 1910-1959. Volume 14, "Addenda & Corrigenda," ed. Peter W. Hammond, Gloucestershire, Sutton Publishing, 1998.
- [S128] The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant ed. Vicary Gibbs, H. A. Doubleday, Duncan Warrand, Howard de Walden, Geoffrey H. White and R. S. Lea. 2nd edition. 14 volumes (1-13, but volume 12 spanned two books), London, The St. Catherine Press, 1910-1959. Volume 14, "Addenda & Corrigenda," ed. Peter W. Hammond, Gloucestershire, Sutton Publishing, 1998.