John Hamilton

John Hamilton

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John Hamilton
Born about in Lanarkshire,Scotlandmap
[sibling(s) unknown]
Husband of — married about in ,Cadzow,Lanarkshire,Scotlandmap
Died about in Battle of Homildon,Northumberland,Englandmap [uncertain]
This page has been accessed 1,482 times.

Categories: Clan Hamilton.

Clan Hamilton tartan. This person is a member of Clan Hamilton.
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Sir John Hamilton, 4th Baron of Cadzow

Note that different authoritative sources list his offspring differently. The 2003 edition of Burke's (1) list the following:

1. James
2. Elizabeth
3. Mary

and (illegitimate):

4. Walter
5. Thomas

whereas Anderson (2) lists:

1. James
2. David
3. Thomas
4. Catherine

and Hamilton (3) lists:

1. James
2. David
3. Walter
4. Catherine

Hamilton argues "On 20 May 1441, Sir James of Hamilton. Kt, Lord of Cadzow. granted to his cousin, ,James of Hamilton. son of the late Walter· of Hamilton. the lands of Raploche. (Witnesses: John of Hamilton and Gawaine of Hamilton brothers of the grantor, Arthur of Hamilton. Alexander of Hamilton and Thomas of Hamilton of Neilsland. This charter indicates, by its stated relationship of Sir James Hamilton to the grantee that the founder of the Raploch branch of the family was Walter Hamilton.

In relation to his reported first son however, as a result of extensive genetic genealogy research carried out by the Hamilton Surname Project, it has now been shown that contrary to popular belief John, the 4th Baron of Cadzow cannot have been the father of James (5th Baron of Cadzow).

Genetic testing of numerous descendants of James has shown that he carried a particular genetic marker on his Y chromosome. This marker, an SNP (single nucleotide polymorphism), is designated L-1237.

Similar testing involving descendants of John (ie James' half brothers) as well as descendants of John's non-lineal ancestors (uncles etc) has indicated that all of these males carry the SNP L-338.

This is further explained in the following extract (4):

Until a few years ago it was thought that James Hamilton (the 5th of Cadzow) was the son of John Hamilton the 4th of Cadzow but through the marvels of genetic testing it is now quite clear that this just cannot be. Who the actual father was is still a mystery but his genetic “finger-print” is known and the search goes on.

Two papers have been combined into one on the Internet and are highly recommended for anyone interested in exploring this mystery. One of the papers also gives an excellent account of the politics of the time providing an essential background to the emergence of this branch of the family.

Clearly James Hamilton was not a Hamilton in terms of bloodline but then what is a “Hamilton”. The first of the line to consistently use the surname Hamilton was David Hamilton around 1381:

He was the first of the family recorded as formally using the name Hamilton, appearing in a writ of 1375 as "David de Hamylton, son and heir of David fitz Walter", in 1378 he is styled as David de Hamilton and in 1381 as David Hamilton, Lord of Cadzow. (1).

So there is the first officially recorded Hamilton of the line in 1381, only a few years before the birth of James. Prior to that surnames thought to have been used by the male line of family include de Hamilton, fitz Walter, fitz Gilbert, Beaumont, Audemar, Harcourt, Sachsen and even Frithuwald. What is important is the blood-line because at that time the legitimacy of the birth radically affected the right and ability to inherit titles and property so the subterfuge successfully conducted by Janet and her entourage has had a long lasting effect on the family and its fortunes.

What the genetics also tell us is that the father of James and his step-father (John) shared a common ancestor possibly 2,000 years ago and he lived somewhere in what is now North Western Germany.




2. Historical and Genealogical Memoirs of the Branches of the House of Hamilton, John Anderson, Edinburgh, 1825. p 49.

3. A History of the House of Hamilton, George Hamilton, J. Skinner and Co., Edinburgh. 1933 p 6.

4. The Maymore Hamiltons and Related Families, J. Leslie Hamilton, (2013 edition), Private Publication. p 9.


DNA: Y-Chromosome Haplogroup


All male line descendants of this person will be the same haplogroup. For an explanation of Y chromosome testing for genealogy purposes see Wikipedia at Note STR patterns can be used to predict a haplogroup wheresas specific SNP testing accurately defines a haplogroup. The current approved haplotree can be found at and the current haplogroup designations against specific SNPs can be found at

The Hamilton Surname genetic genealogy project site: 1.


1. See particularly point 8.




Name: John /HAMILTON/ [1][2][3]


Birth: ABT 1428 Of, Cadzow, LKS, Scotland[4]


Husband: John Hamilton
Wife: Jacoba Douglas
Child: Catherine Hamilton
Child: Margery Catherine Hamilton
Record ID Number: MH:F293
User ID: 31796950-391F-4BE8-86F3-7C88B65F7D4A
Date: 1388-11
Place: Cadzow, Lanarkshire, Scotland

Imported only 1388 from Marriage Date and marked as uncertain.


  • WikiTree profile Hamilton-1708 created through the import of wolfefamily.ged on Jun 26, 2011 by Herbert Wolfe.
  1. Source: #S2
  2. Source: #S3
  3. Source: #S4
  4. Source: #S4
  • WikiTree profile Hamilton-1655 created through the import of FAMILY 6162011.GED on Jun 20, 2011 by Michael Stephenson.
  • Source: S2 Title: Pedigree Resource File CD 49 Abbreviation: Pedigree Resource File CD 49 Publication: (Salt Lake City, UT: Intellectual Reserve, Inc., 2002)
  • Source: S256 Title: Type: Ancestral File Number Abbreviation: Type: Ancestral File Number
  • Source: S3 Title: Ancestral File (TM) Abbreviation: Ancestral File (TM) Author: The Church of Jesus Christ of Latter-day SAINTS Publication: June 1998 (c), data as of 5 JAN 1998 Repository: #R1
  • Repository: R1 Name: Unknown
  • Source: S4 Title: hofundssonAnces.ged Abbreviation: hofundssonAnces.ged Repository: #R1

Record ID Number

Record ID Number: MH:I253

User ID

User ID: C61D1056-257B-48B8-9BA3-F72095A6F972


John was born about 1371. John Hamilton ... He passed away about 1402. [5]

Do you have information about John Hamilton? Please contribute to his biography. Everything on WikiTree is a collaborative work-in-progress.


No sources. The events of John's life were either witnessed by Jonathon Dale Walter Myers or Jonathon Dale Walter plans to add sources here later.


  1. Source: #S2
  2. Source: #S3
  3. Source: #S4
  4. Source: #S4
  5. Entered by Jonathon Dale Walter Myers, Jun 12, 2013


Thanks to Jonathon Dale Walter Myers for starting this profile. Click the Changes tab for the details of contributions by Jonathon Dale Walter and others.


Unknown Hamilton ... [6]

Do you have information about Unknown Hamilton? Please contribute to his biography. Everything on WikiTree is a collaborative work-in-progress.


No sources. The events of Unknown's life were either witnessed by Sheri Sturm or Sheri plans to add sources here later.


  1. Source: #S2
  2. Source: #S3
  3. Source: #S4
  4. Source: #S4
  5. Entered by Jonathon Dale Walter Myers, Jun 12, 2013
  6. Entered by Sheri Sturm, Apr 21, 2013


Thanks to Sheri Sturm for starting this profile. Click the Changes tab for the details of contributions by Sheri and others.

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No known carriers of John's Y-chromosome or his mother's mitochondrial DNA have taken yDNA or mtDNA tests.

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