See also

Margaret HOLLAND's other family: with Thomas de BOLINGBROKE (c. 1387-1421)
Margaret HOLLAND's parents: Thomas HOLLAND ( -1397) and Alice FITZALAN (c. 1350-1416)
Margaret HOLLAND's siblings: Alianore HOLLAND ( - ), Thomas HOLLAND ( - ), John HOLLAND ( - ), Richard HOLLAND ( - ), Elizabeth HOLLAND ( - ), Joan HOLLAND ( - ), Edmund HOLLAND ( - ), Eleanor HOLLAND ( - ) and Bridget HOLLAND ( - )

Family of John BEAUFORT and Margaret HOLLAND

Husband: John BEAUFORT

Name:
John BEAUFORT
Sex:
Male
Father:
-
Mother:
-
Birth:
c. 1371¹
Title:
1st Earl of Somerset
Death:
16 Mar 1410 (age 38-39)¹

Wife: Margaret HOLLAND

Name:
Margaret HOLLAND
Sex:
Female
Father:
Thomas HOLLAND ( -1397)
Mother:
Alice FITZALAN (c. 1350-1416)
Birth:
c. 1385¹
Death:
31 Dec 1439 (age 53-54)¹

Child 1: Henry BEAUFORT

Name:
Henry BEAUFORT
Sex:
Male
Birth:
26 Nov 1401¹
Title:
2nd Earl of Somerset
Death:
25 Nov 1418 (age 16)¹

Child 2: John BEAUFORT

Name:
John BEAUFORT
Sex:
Male
Spouse:
Margaret BEAUCHAMP ( - )
Birth:
c. 1403¹
Baptism:
25 Mar 1404 (age 0-1)¹
Title:
3rd Earl of Somerset
Title:
1st Earl of Kendal
Death:
27 May 1444 (age 40-41)
Bauge, France¹

Child 3: Joan BEAUFORT

Name:
Joan BEAUFORT
Sex:
Female
Birth:
c. 1404¹
Death:
15 Jul 1445 (age 40-41)
Dunbar, East Lothian¹
Address: Dunbar Castle

Child 4: Thomas BEAUFORT

Name:
Thomas BEAUFORT
Sex:
Male
Birth:
c. 1405¹
Title:
Count of Perche
Death:
3 Oct 1431 (age 25-26)
Louviers, France¹

Child 5: Edmund BEAUFORT

Name:
Edmund BEAUFORT
Sex:
Male
Spouse:
Eleanor de BEAUCHAMP ( - )
Birth:
c. 1406¹
Title:
4th Earl of Somerset¹
Death:
22 May 1455 (age 48-49)
St Albans, Herts¹

Child 6: Margaret BEAUFORT

Name:
Margaret BEAUFORT
Sex:
Female
Spouse:
Thomas COURTENAY ( - )
Birth:
c. 1409
Westminster, London W¹
Death:
c. 1449 (age 39-40)¹

Sources

1.: wikipedia.org.