The Royal House of Stewart was founded by Robert II (2 March 1316 – 19 April 1390) of Scotland. About sixteen percent of all Scottish men surnamed Stewart belong to this Stewart family. Robert's great-great-grandfather Walter STEWART (~1198-1246) was the third High Steward of Scotland and the first member of this historic family to use the surname Stewart. About 80% of his descendants still have a variation of the surname Stewart. Their ySTR (short tandem repeat) test results closely match those of the ducal descendants of four different sons of King Charles II. All of them belong to a Celtic haplogroup that the International Society of Genetic Genealogists (ISOGG) named R1b1a2a1a1b3a9a1, and test positive for the mutations (SNPs) R-L745 < L744, DF41, DF13, L21, P312, L11, L51, L150, L23, M269 (WAMH), P297, P25, M343, M173, M207. If you want to see estimates (some erroneous) of when these mutations occurred and how descendants of the High Stewards of Scotland who tested at the Y-DNA67 level are related to each other and to many other R-L21 families, click on the image at the bottom of the web page at http://www.familytreedna.com/public/Stuart/default.aspxhttp://www.familytreedna.com/public/Stuart/default.aspx and scroll about 80% down the next screen to pages 78 and 79 of 96.
FTDNA at www.familytreedna.com has a larger database than all of the other DNA testing companies combined. Its test results are more useful because its customers can compare their test results to those of the most people. These test results help consenting relatives to learn more about their genealogical, historical and anthropological relationships without revealing personal information.
That FTDNA has the largest database is one of the many reasons why paying any other company for a Y-DNA test for genealogical purposes would be a mistake.
No forensic evidence is more scientific and trustworthy than the results of a DNA test. The history of our ancestors is written in our genes. Correctly interpreted, it is the greatest story ever told. A man's Y-DNA test results are an educational gift to all of his descendants and patrilineal cousins. The confidence, pride and respect that comes from knowing about the history, accomplishments, struggles and identity of their ancestors may help children more than anything else that one can give to them except parents who love and want them to be as healthy and happy as they can be. Self-respecting parents are more likely to nourish, educate and care for their children well enough for them to become intelligent adults who pass their genes on to the next generation, and who contribute to the security, prosperity, survival and scientific and technological progress of our civilization and world.
"The accessibility and affordability of family DNA testing is doubtless the greatest technical advance in the history of genealogical research because -- at long, long last -- we have a tool to break down those brick walls!" Matthiesen
A comparison of our DNA test results may help us to identify to which Stewart/Stuart family you belong even if you do not know the names of your biological parents. People with different surnames may be surprised to learn that they too are members of the royal Stewart family.