Family: Gilbert (6th Earl of Hertford and 7th Earl of Glouceter) DeClare / Joan of Acre

Maternal line Gilbert (6th Earl of Hertford and 7th Earl of Glouceter) DeClare
Maud de Lacy 1223 - 1289  (66 years)	_	Richard IV (5th Earl of Hertford)( 6th Earl of Glos) De Clare (maid. name 1) 1222 - 1262  (39 years)
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Margaret DeQuincy 1208 - 1258  (50 years)	_	John DeLacy 1192 - 1240  (48 years)

Maternal line Joan of Acre
Eleanor of Castile 1241 - 1290  (49 years)	_	Edward I (KING OF ENGLAND) Plantagenet 1239 - 1307  (68 years)
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Joan (Countess of Ponthieu)	_	Ferdinand III of Castile 1200 - 1252  (52 years)