Isabella de Beauchamp, Baroness Despenser

de Beauchamp Side

• de Beauchamp, William 9th Earl of Warwick 1237 - 1298  (~ 61 years)

• de Beauchamp, William 1215 - 1268  (~ 53 years)
• Mauduit, Isabel 1217 - 1268  (~ 51 years)

Fitzjohn Side

• Fitzjohn, Maude Countess of Warwick 1238 - 1301  (~ 63 years)

• FitzGeoffrey, John Lord of Shere 1205 - 1258  (~ 53 years)
• Bigod, Isabel 1210 - 1250  (~ 40 years)

• FitzPiers, Geoffrey Earl of Essex 1162 - 1213  (~ 51 years)
• de Clare, Aveline Countess of Essex 1178 - 1225  (~ 47 years)
• Bigod, Hugh II 3rd Earl of Norfolk 1182 - 1225  (~ 43 years)
• Marshal, Maude Countess of Norfolk, Countess of Surrey 1192 - 1248  (56 years)