*Katherine Beaumont
born about 1354 England

father:
*Henry Beaumont
born about 1314 Wiltshire, England

mother:
*Elizabeth Stawel
born 1330 Saunton, Somersetshire?, England
married 1353 Stourton, Wiltshire, England
(end of information).

siblings:
unknown

spouse:
*John de Stourton
born about 1340 Stourton, Wiltshire, England

children:
*William de Stourton
born about 1373 Stourton, Wiltshire, England
died 18 September 1413
buried Witham, Somersetshire, England

biographical and/or anecdotal:

notes or source:
LDS
The father is variously listed as John or Henry Beaumont.
The mother is variously listed as Elizabeth Stawel or Joan Stackhay.
This Katherine Beamont is probably getting mixed up with Katherine Beaumonts of Devonshire and Cheshire.
There is a line of Henry Beaumont in Wiltshire as is the Stourton line.
Geography being what it was then, this is a more likely line.