Cretney Lines under Haplogroup BY3368
The surname Cretney was first found in Galloway (Gaelic: Gall-ghaidhealaibh), an area of southwestern Scotland, now part of the Council Area of Dumfries and Galloway, that formerly consisted of the counties of Wigtown (West Galloway) and Kirkcudbright (East Galloway), where they held a family seat. In a strange convolution of heritage and translation from the Gaelic, this name, Cretney is descended from MacBratney, or MacBhreatnaich, the Gaelic, meaning a son of the Strathclyde Briton, or children of the Britons, who settled amongst the Gaels. From their home lands in Clontag and Knockane in Galloway in Western Scotland they descended to Martin Birty who appears in records in 1471. They were known as the Clann a'Bhreatannich, and were originally from the Island of Gigha off Kintyre, a branch of the Galbraiths as early as 1230. The name evolved to Makbretny, and thence to Vretny and Cretny.