De Reviers Side

• De Reviers, Baldwin 6th Earl Of Devon 1217 - 1245  (28 years)

De Clare Side

• De Clare, Amice Countess Of Devon 1220 - Bef 1284  (< 63 years)

• De Clare, Gilbert 4th Earl Of Hertford 5th Earl Of Gloucester Massachusetts Gna Carta Surety 1180 - 1230  (50 years)
• Marshal, Isabel Countess Of Hertford 1200 - 1240  (39 years)

• de Clare, Richard 3rd Earl of Hertford 1153 - 1217  (64 years)
• Fitzwilliam, Amice 4th Countess Of Gloucester 1160 - 1225  (~ 64 years)
• Marshal, Sir William 1st Earl Of Pembroke 1146 - 1219  (73 years)
• De Clare, Isabel 4th Countess Of Pembroke 1172 - 1220  (~ 48 years)