1. Roger de Quincy, 2nd Earl of Winchester has few details recorded about him.
Roger de Quincy, 2nd Earl of Winchester had the following children:
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2. Elizabeth de Quincy, daughter of Roger de Quincy, 2nd Earl of Winchester, married Alexander Comyn, 2nd Earl of Buchan, Constable of Scotland.
Alexander Comyn, 2nd Earl of Buchan, Constable of Scotland, son of William de Comyn, 1st Earl of Buchan , Justiciar of Scotland ( -1233) and Sarah FITZHUGH (c. 1160-aft1204), died in 1289. He and Elizabeth de Quincy had the following children:
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3. John Comyn, 3rd Earl of Buchan, Constable of Scotland was the son of Alexander Comyn, 2nd Earl of Buchan, Constable of Scotland and Elizabeth de Quincy.
4. Sir Alexander Comyn, son of Alexander Comyn, 2nd Earl of Buchan, Constable of Scotland and Elizabeth de Quincy, married Johanna LATIMER.
Johanna LATIMER and Sir Alexander Comyn had the following children:
| 7 | Alicia COMYN ( - ). Alicia had the title 'Countess of Buchan'. She married Henry de BEAUMONT before 14 March 1310. |
5. Marjorie Comyn was the daughter of Alexander Comyn, 2nd Earl of Buchan, Constable of Scotland and Elizabeth de Quincy.
6. Agnes (Egidia, Emma) Comyn, daughter of Alexander Comyn, 2nd Earl of Buchan, Constable of Scotland and Elizabeth de Quincy, was born circa 1257. She died in 1313. She married Malise, 6th Earl of Strathearn...
Malise, 6th Earl of Strathearn.. and Agnes (Egidia, Emma) Comyn had the following children:
| 8 | Malise, 7th Earl of Strathearn ( -1325). Malise, died in 1325. |