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.