Louis de Brienne Vicompte of Beaumont Sir Alexander Comyn
Agnes Joan Latimer
m. bef 14 Jul 1310
Henry de Beaumont Lord Beaumont Alice Comyn Countess of Buchan
b. ca 1280
d. 10 Mar 1340
Yr s. 1st baron. Also earl of Buchan. Constable of England.
b.  
d. bef 10 Aug 1349
1st dau, co-heir. Suo jure, Countess of Buchan (S).
Children
> John Beaumont Lord Beaumont(ca 1318 - bef 25 May 1342)
> Isabel de Beaumont( - aft 1361)
Elizabeth Beaumont( - 27 Oct 1400)
Catherine Beaumont( - 11 Nov 1368)
Agnes de Beaumont( - aft 1359)