Sibyl Marshal, Countess of Derby

Abt 1201 - 1245  (44 years)

• Name	Sibyl Marshal
  Suffix	Countess of Derby
  Birth	Abt 1201
  Gender	Female
  Death	27 Apr 1245
  Person ID	I13687	KLD Genealogy
  Last Modified	25 Oct 2025

  
  

  Father	William FitzJohn, Sir 1st Earl of Pembroke Marshal of the Horses,   b. Abt 1146   d. 14 May 1219 (Age 73 years)
  Relationship	biological
  Mother	Isabel de Clare, Countess of Pembroke,   b. 1172   d. 1220 (Age 48 years)
  Relationship	biological
  Family ID	F4565	Group Sheet  |  Family Chart

  
  

  Family	William de Ferrers, III 5th Earl of Derby,   b. 1193   d. 28 Mar 1254 (Age 61 years)
  Children	1. Agnes de Ferrers   d. 11 May 1290  [Father: biological]  [Mother: biological]   2. Isabel de Ferrers   d. Bef 26 Nov 1260  [Father: biological]  [Mother: biological]   3. Maud de Ferrers, Viscountess of Rochechouart   d. 12 Mar 1298  [Father: biological]  [Mother: biological]   4. Sibyl de Ferrers  [Father: biological]  [Mother: biological]   5. Joan de Ferrers, Lady   d. 1267  [Father: biological]  [Mother: biological]   6. Agatha de Ferrers   d. May 1306  [Father: biological]  [Mother: biological]   7. Eleanor de Ferrers, Countess of Winchester   d. 16 Oct 1274  [Father: biological]  [Mother: biological]
  Family ID	F4458	Group Sheet  |  Family Chart
  Last Modified	25 Oct 2025