Contributed
by Belinda Dettmann
This is the third draft of a hypothetical Relationship Tree for R1b
Stewarts. The first draft was written in
January 2008 and was based on tests with 37 markers. Since then many more
67-marker results have become available for Stewart testers and a revised
version was released in August 2009, based on 67-marker tests only. This
release, labeled draft 3, is based on 67-marker tests from Projects Stewart and
Stewart2 at FTDNA, plus Stewarts on Ysearch, as at August 2010.
The dots on the
graph represent DNA haplotypes from testers with the Stewart surname, or those
who have joined one of the Stewart Projects at FTDNA. Analyses indicate that there are several
recognizable but separate groups of Stewarts, colored red, blue or green on the
graph, colours being allocated to the different groups in accordance with the
protocol used in the Stewart DNA Project at FTDNA. Many Stewart test results cannot yet be
assigned to groups and these are shown
here in yellow.
The large red dot labelled
ORIGIN consists of a group of identical haplotype results, (numbered QHV9S,
110059, 179069, 181994), which are believed to be unchanged from the Y-DNA
signature of Alexander Stewart (c 1220-1283), 4th High Steward of Scotland. He
was the ancestor of the Royal Stewart kings of Scotland (via King Robert II),
and the Royal House of Stuart in the United Kingdom (via King James I and VI),
plus many other lines of Stewart or Stuart nobles in Scotland, England, Ireland
and France.
Originally the QHV9S
haplotype did not represent the test result of any single person, and was
inferred from the pattern of Stewart results shown in Draft 2 of the diagram
created in August 2009. That haplotype was
entered in Ysearch as QHV9S. No testers were then known to have results that
exactly matched the QHV9S signature but three other identical results for
individual Stewart descendants have emerged since.
The red group consists of Stewarts who have been tested to 67 markers
and who match the QHV9S haplotype at a genetic distance (GD) of 8 or less.
These testers include several known descendants of the ancient line of the
Stewart High Stewards of Scotland. In the Y-results section of the Stewart
Project this group is labeled Charles II, and two known descendants of King
Charles II have test results in this group.
I believe that any Stewart with a 67-marker test result within a GD of 8
of QHV9S is likely to be a direct
descendant of the ancient Stewart line, whose ancestry has been traced back
through the High Stewards of Scotland to Flaald of Dol in Brittany (born about
1046).
Two testers who had been grouped separately in a pale green group in the
Stewart Project appear to me to be descendants of the ancient line, and these
are shown on the diagram with red/green markings.
This is the first group shown in the results of the Stewart Project at
FTDNA. Results for 67 markers are shown for tests: (49809, MQBGY, QA78V).
Yellowish-Green: Edward 1720 VA
This group has several sets of results: (4874, 5740, 6KGSM), 158549,
15328.
Red/Green: Subset of Red –
Ancient Stewarts
Two separate test results – (8101, Q2S2M), (5603, E7RU2). See comment
for the Red Group.
Yellowish-Grey: John NC Macon
1740-6
Four separate results – 4137, 44769, 143812, N30806.
Light Blue: Sam/Lydia Rowan NC
One set of results – (6865, SSKBK).
The yellow dots are unassigned individuals, well separated from the
other groups in terms of their Y-DNA, so they are unlikely to be direct-line
descendants of the Ancient Stewarts or other existing groups.