Hello,
Not sure if people have knowledge of Welsh Gentry from the 1400s/1500s but I've come across a Welsh line in Denton, Lincolnshire which originates from a 'Thomas Williams of Abergavenny' who was apparently Gentleman of the Bedchamber to Henry VII. I cant seem to find anything of the origins of this Thomas or much on the family, apart from a pedigree given in Lincolnshire Pedigrees by A.R.Maddison and records gleaned from the Church register.
This is what I have as per pedigree and Church records.

CoA - 'Gules, A Cave Proper, Therefrom Issuing a Wolf at Full Speed Reguardant Argent'. Sometimes the Wolf is listed as coming out from behind a rock, instead of out of a cave.
Crest - 'A Lion Rampant Proper'

My 12th Grt Grandmother -
Eleanor Williams
Born - 1614 Denton, Linc. Baptised as 'Hellenor Williams, daughter of Mr John Williams and Sillina'.
Marries 1633 Denton, Linc to William Welby, Esq, of Denton Manor.
Dies - 1688 Denton, Linc.

Daughter of -
John Williams, Esq, of Denton, Linc and Hungerton and Wyville.
Born - 1584 Denton, Linc. Baptised as 'John, the son of Mr Richard Williams and Jane his wife'.
Marries - 1607 Maxey, Northamptonshire to Selina Worsley, Daughter of Richard Worsley, Esq, of Deeping Gate.
Dies - 1627 Denton, Linc listed as 'Mr John Williams, Esq'

Son and Heir Apparent of -
Richard Williams, Esq, of Denton, Linc and Hungerton and Wyville.
Born - Jan 1540 Denton, Linc. Baptised as 'Richard, Son of Mr George Williams and Alice, his wife'
Marries - 1581 to Jane Allen daughter and heir of George Allen, Esq, of Grantham, Linc.
Dies - 1606 Denton, Linc listed as 'Mr Richard Williams'

Son of -
George Williams, Esq of Denton, Linc and Hungerton and Wyville.
Born - c1515?
Marries - Alice Cony/Coney of Bassingthorpe, Sister of Richard Cony/Coney
Dies - 1556/7 Intestate.

Son of -
William Williams, Esq, of Stamford, Linc and Thurlby, Linc.
Born - 1485?
Marries - Elizabeth Upton dau of John Upton, Esq.
Dies - ? (Before his wife who died 1537)

Son of -
Thomas Williams, Esq, of Abergavenny, Wales and Stamford, Linc and Little Burley (Burghley?), Linc.
Alderman of Stamford in 1510? Some pedigrees put another generation called Thomas, in between this Welsh Thomas and William but I'm not sure if that is correct?

Born - Abergavenny, Wales c1460?
Marries - Elizabeth, daughter of Unknown.
Dies - c.1529?
Sold the Manors of Stamford and Burley in 1526.
Apparently (As per another website) at or just after Thomas's death in 1529, is a record which mentions a sister Matilda, who is to enjoy his lands in Wales. I haven't been able to find this record. Perhaps somebody else knows where this could be?

He is given as a Gentleman of the Bedchamber to King Henry VII. Burkes incorrectly gives him as of 'Aberconway' but this is apparently corrected by Deeds found at Harlaxton and Denton Manors held by the Welby family. Who on becoming Baronets Welby of Denton were representatives of the Welby, Williams and Upton families on this line.

Any information on this Williams family would be greatly appreciated.