See also

Joan COURTENAY's other family: with Roger (Sir) CLIFFORD ( -c. 1485)
Joan COURTENAY's parents: Thomas COURTENAY ( - ) and Margaret BEAUFORT (c. 1409-c. 1449)
Joan COURTENAY's siblings: Thomas COURTENAY (c. 1432-1461), Henry COURTENAY ( -1469), John COURTENAY (c. 1435-1471), Elizabeth COURTENAY (c. 1449- ), Anne COURTENAY ( - ), Eleanor COURTENAY ( - ) and Maud COURTENAY ( - )

Family of Sir William KNYVET and Joan COURTENAY

Husband:
Sir William KNYVET ( - )
Wife:
Joan COURTENAY (c. 1447- )

Husband: Sir William KNYVET

Name:
Sir William KNYVET¹
Sex:
Male
Father:
-
Mother:
-

Wife: Joan COURTENAY

Name:
Joan COURTENAY
Sex:
Female
Father:
Thomas COURTENAY ( - )
Mother:
Margaret BEAUFORT (c. 1409-c. 1449)
Birth:
c. 1447¹

Sources

1.: wikipedia.org.