This page is devoted to work in Genetic Genealogy concerning the descendants of Sir John Stewart of Bonkyll.
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About Sir John Stewart of Bonkyll
Sir John Stewart of Bonkyll (died 22 July 1298) was a son of Alexander Stewart, 4th High Steward of Scotland. He was a military commander during the First Scottish War of Independence and during the Battle of Falkirk, he commanded the Scottish archers, and was killed during the battle. He is interred in the churchyard of the Falkirk Old Parish Church.
Marriage and children
He married Margaret de Bonkyl (Bonkill), daughter of Sir Alexander de Bonkyl. They had issue:
ABOUT SNP 781
Dr Jim Wilson discovered the SNP S781 which arose in Sir John Stewart of Bonkyll. It was first included in Chromo2 test provided by ScotlandDNA.
Tests for SNP S781 are sold by FTDNA and YSEQ. They have allowed us to split the Ancient Stewart family into two sub-families : Descendants of James Stewart, 5th High Steward of Scotland, have tested S781-, while descendants of Sir John Stewart of Bonkyll have tested S781+.
Alex Williamson DF41 Tree
These SNPs are downstream of S781 and can establish new intersections and links between testers and their families. The more members of our Stewart family order NGS tests, the more accurate our family tree will become. The results of FTDNA BigY tests have been especially helpful.
Dr Jim Wilson found other SNPS that are specific to the Lennox Lines via a Full Y test of a ducal descendant of King Charles II Stuart. A £ 189.00 (about US$310) Chromo2 test can show whether or not you have one of these six mutations.
SNP S781+ GROUPS
FTDNA : Please Join R-S781 Group
YFULL : Please Join R-S781 Group
- How next generation sequencing (NGS) tests can help us to scientifically prove where each member of this family belongs on a phylogenetic tree is explained via this ~6 minute VIDEO.
- About Big Y DNA Test
- About Full Genome Test
- About Chromo2 Test
STEWART, STUART and STEUART
You will find all individuals born between 1245 and 1807 (divided in 29 familial genealogical trees).
This family tree could be improved. Any Corrections and Suggestions are welcome.
Outdated online sources may generate mistakes or confusion. One famous example is the Stewart of Castlemilk Line. It was once thought that it issued from William Stewart of Darnley (died in 1429 in France). In fact this family descends from one John Stewart of Castlemilk.
You may have to examine more than one database and source in order to correctly identify an ancestor.
ABOUT STR MARKERS
STR Markers are useful for recent cousinages in Genetic Genealogy
YFULL R-S781 GROUP Y-STR RESULTS
Larry Walker DF41 STR Tree
Belinda Dettmann STR111 Diagram (12/2014)