1. Johanna LATIMER married Sir Alexander Comyn.
Sir Alexander Comyn was the son of Alexander Comyn, 2nd Earl of Buchan, Constable of Scotland ( -1289) and Elizabeth de Quincy ( - ). He and Johanna LATIMER had the following children:
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2. Alicia COMYN, daughter of Sir Alexander Comyn and Johanna LATIMER, had the title 'Countess of Buchan'. She married Henry de BEAUMONT before 14 March 1310.
Henry de BEAUMONT had the title '1st Lord, Earl of Buchan, Justiciar of Scotland'. He died in 1340. He and Alicia COMYN had the following children:
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3. John BEAUMONT, son of Henry de BEAUMONT and Alicia COMYN, had the title '2nd Lord'. He married Eleanor PLANTAGENET before 1337.
Lady Eleanor PLANTAGENET, daughter of Henry PLANTAGENET (1281-1345) and Maud CHAWORTH ( - ), was born between 1311 and 1316. She married Richard Fitzalan, 10th Earl of Arundel on 5 February 1345 in Ditton Church, Stoke Poges, Bucks.. She died on 11 January 1372. She and John BEAUMONT had the following children:
| 4 | Henry BEAUMONT (c. 1339-1369). Henry was born circa 1339. He died on 25 July 1369. |