Our common ancestors - Herbert - Contents

Herbert

In particular Herbert, Earl of Pembroke.
My wife descends from the 10th Earl of Pembroke, so this line is done in some detail.
I descend (through Blennerhassett) from the brother of the 1st Earl of Pembroke (of the first creation).

This family does not descend from the Norman FitzHerbert family

Genealogies have existed for centuries claiming to show the Herbert male line above Adam (born est c.1255), and in particular claiming descent from the Norman FitzHerbert family.
While that family did exist, [Clark, 1886] and others argue that these Herberts do not descend from them, and these genealogies were faked at an early period to show a Norman origin for the Earls of Pembroke.
Darrell Wolcott agrees, and argues that the true origin of Herbert is native Welsh.

We begin as follows.
The surname "Herbert" was not established until the children of Sir William ap Thomas.

Adam,
born est c.1255,
mar Christian Ddu [dau of Gwarin Ddu, the "Black Lord" of Llandilo],
had issue:

Jenkin ap Adam,
mar Gwenllian [dau of Sir Aaron ap Bleddyn],
had issue:

Gwyllym ap Jenkin ap Adam,
William,
mar Gwenllian Ichon [dau of Howel Ichon],
he died 1377,
had issue:

Sir Thomas ap Gwyllym, 4th son,
mar Maud Morley [dau of Sir John Morley, Knt, of Llansantffraed Court, Llansantffraed, Powys, Wales],
inherited the Morley estate, Llansantffraed Court, 1400,
he died 1438,
had issue:
1. Sir William ap Thomas.

Arms of the Earl of Pembroke (creation of 1551).
Public domain image from here.

References

PEMBROKE in [Complete Peerage]
PEMBROKE in [Burkes Peerage]
HERBERT in [Burkes LG]
"The family of Herbert", on p.250 and p.251 and p.252 of Limbus patrum Morganiae et Glamorganiae by George Thomas Clark, 1886.
The Herbert Family Pedigree by Darrell Wolcott, Center for the Study of Ancient Wales.

Sources yet to be consulted

Wilton papers at Wiltshire and Swindon History Centre
Earl of Pembroke papers (various archives).
The Herberts of Wilton by Tresham Lever, 1967. [CUL] 496.2.c.95.51.
Earls of Paradise by Adam Nicolson, 2008.
Herbert in Eton College Lists, 1678-1790.
Herbert on pp.265-266 of Eton College register, 1753-1790.
Herbertorum Prosapia, Cardiff Central Library, Ms. 5.7. This is a Ms history of Herbert family, by Sir Thomas Herbert of Tintern, c.1681.

Herbert and p.2 and p.3 by Peter Barns-Graham