Y Haplogroup R-A11727

The first man to carry the SNP mutations indicating the R-A11727 paternal haplogroup was born between 253 AD and 1430 CE, with the median date in that range set at 966 CE, with 95% confidence using the aging method developed by Iain McDonald. A strange happenstance is that the only other surname which shares the R-A11727 haplogroup with Clan Erskine is the Irish Clan Kavanagh/Cavanaugh. Upsteam or parent haplogroups are as follows: R-P312/S116 > Z290 > L21/S145 > DF13 > Z39589 > DF41 > Y5628 > A11727. Clan Erskine shares the broader R-DF41 Haplogroup with the Royal Stewarts, and several other notable Scottish clans. Between the broader R-DF41 and the more recent R-A11727 is R-Y5628, which is shared with two other families, the English Lamberson family and the Irish Clan Tuite. The surname Lamberson was first found in Lancashire in Northern England where they held a family seat from very ancient times. The first record was in the village of Warton where they held their mansion and family seat. They are believed to be of Norman origin and arrived after the Norman Conquest in 1066. In Normandy they held a family seat at Lambert-sur-Dive and Lambert sur Orne. Interestingly enough, the names Cavanaugh and Tuite were both introduced into Ireland at the time of Strongbow's invasion in 1170 CE. The decease of the first to bear the name Tuite is recorded in 1211 in the Ancient Irish Annals. In late 1173, Domhnall Caomhanach (Donal Cavanagh), the first to bear the name, attacked Strongbow's forces in Leinster, killing 200 soldiers. He is the ancestor of the Caomhanach line of the Ui Ceinnselaig dynasty and was King of Leinster from 1171 to 1175. Domhnall was the eldest son of the 12th century King of Leinster, Diarmait Mac Murchada.

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