MMR Blanche or Blanca of Lancaster

OF GROSMONT Side

• OF GROSMONT, Henry 1st Duke of Lancaster, 4th Earl of Leicester and Lancaster 1299 - 1361  (62 years)

• PLANTAGENANT, Henry 1281 - 1345  (64 years)
• Matilda or Maud de Chaworth 1282 - 1322  (40 years)

• PLANTAGENET, Edmund Crouchback 1245 - 1296  (51 years)
• Blanche of Artois Queen of Navarre 1248 - 1302  (54 years)
• DE CHAWORTH, Patrick Lord of Kidwelly Abt 1250 - 1283  (~ 33 years)

DE BEAUMONT Side

• DE BEAUMONT, Isabella Duchess of Lancaster 1315 - 1361  (46 years)

• DE BEAUMONT, Henry de Beaumont 4th Earl of Buchan, jure uxoris Abt 1285 - 1339  (~ 54 years)
• COMYN, Alice 1289 - 1349  (60 years)

• DE BRIENNE, John I
• DE BEAUMONT, AGNES 1270 -
• COMYN, Alexander Sheriff of Aberdeen Abt 1260 - 1308  (~ 48 years)