General Notes

Gwilym ap Jenkin; Master Sgt of Abergavenny 1340; married Gwenllian, daughter of Hywel Fychan ap Hywel and died c1377, leaving [Thomas], with numerous other issue.  [Burke's Peerage]


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Copied from Herbert, George biography, 88.1911 encyclopedia.org/H/HERBERT_GEORGE.htm:
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Jenkin's son, Gwilim ap Jenkin who followed his father as master sergeant is given six sons by the border genealogists, no less than six score pedigrees finding their origin in these six brothers.  Their order is uncertain, although the Progers of Werndee, the last of whom sold his ancestral estate in 1780, are reckoned as the senior line of Gwilim's descendants.  But Thomas ap Gwilim Jenkin, called the fourth son, is ancestor of all those who bore the surname Herbert.