1st Duke of Norfolk Thomas de Mowbray

de Mowbray Side

• de Mowbray, 4th Lord Mowbray John 1340 - 1368  (27 years)

• de Mowbray, 3rd Lord Mowbray John 1310 - 1361  (50 years)
• Plantagenet, Lady Joan 1310 - 1349  (39 years)

• Plantagenet, 3rd Earl of Lancaster Henry 1281 - 1345  (64 years)
• Chaworth, Maud 1282 - 1317  (35 years)

Seagrave Side

• Seagrave, Elizabeth 1338 - 1368  (30 years)

• Seagrave, Lord Segrave John 1315 - 1353  (38 years)
• Plantagenet, Duchess of Norfolk Margaret 1320 - 1399  (79 years)

• Plantagenet, Earl of Norfolk Thomas de Brotherton 1300 - 1338  (38 years)
• Halys, Alice 1302 - 1330  (28 years)