Thomas De Clare Lord Thomond

Earl Of Gloucester & Hertford Side

• Earl Of Gloucester & Hertford, Richard De Clare 1222 - 1262  (39 years)

• Earl Of Gloucester & Hertford, Gilbert De Clare 1182 - 1230  (50 years)
• Marshal, Isabella 1200 - 1240  (38 years)

• Earl Of Hereford, Richard Fitzroger De 1162 - 1218  (65 years)
• Cts De Gloucester, Amicia Fitzrobert 1160 - 1225  (64 years)
• Earl Of Pembroke, William Marshal 1146 - 1219  (73 years)
• Cts De Strigoil, Isabel De Clare 1173 - 1220  (49 years)

Cts De Lincoln Side

• Cts De Lincoln, Maude De Lacy 1223 - 1288  (64 years)

• Earl Of Lincoln, John De Lacy 1192 - 1240  (48 years)
• De Quincy, Margaret 1208 - 1258  (50 years)

• Lord Pontefract, Roger 'Helle' De Lacy 1171 - 1211  (40 years)
• De Clare, Matilda 1184 - 1213  (38 years)
• De Quincy, Robert 1188 - Abt 1219  (33 years)
• Cts De Lincoln, Hawise Le Meschines 1180 - Aft 1241  (> 61 years)