Gjertruds opphav er ikkje kjend. Ho var gift med Guttorm Paulsson Wågen på Skodjevåg, og dei fekk fem kjende born.

Etter at Guttorm døydde i 1709 gifte ho seg på Langnes med enkemannen Arne Olsson.

MT-haplogroup T2

Haplogroup T originated in the Near East about 45,000 years ago, not long after humans emerged from Africa. The haplogroup mostly stayed in place until about 15,000 years ago, when the glaciers that had covered much of Eurasia during the Ice Age began to retreat. As Europe's climate warmed and its long-frozen landscape turned green, people began moving north into the Alps and beyond.

Representatives of haplogroup T were among those first post-Ice Age migrants into Europe. Today about 8% of Europeans can trace their maternal ancestry to the haplogroup, although some of them are descended from people who arrived after the advent of agriculture about 10,000 years ago.

Haplogroup T can still be found in the Near East as well, where it reaches levels of about 10% among Palestinians, Turks and Syrians. Over the years it has spawned a number of sub-haplogroups, some of which have notable histories of their own.

Royal T

The mitochondrial DNA of Russia's final Tsar, Nicholas II, falls into the the T haplogroup. According to his genealogical pedigree, which is well-established because of his membership in the European royal house, his maternal ancestry traces back to a 15th-century empress of the Holy Roman Empire who was born in Slovenia.

Haplogroup T2

An offshoot of haplogroup T, T2 has spread over the millennia from its birthplace in the Near East to northeastern Africa and throughout Europe, riding waves of migration that followed the end of the Ice Age and the origin of agriculture. At the tail end of the Ice Age about 13,000 years ago, one migration appears to have carried the T2 haplogroup from the Near East into northern Africa, especially Ethiopia and Egypt. The origin of agriculture in the Fertile Crescent – a horseshoe-shaped region encompassing Mesopotamia, the Levant and the lower Nile Valley – spawned a second migration that carried T2 deep into Europe. Today the haplogroup is widespread, albeit at low levels, in the populations of Scandinavia, Germany, France and Britain.

A particular version of the T2 haplogroup has been detected in 4% of the present-day Spanish population. The same version has also been found in DNA extracted from 7,000-year-old skeletons excavated in northeastern Spain, an indication that the distinctive form of T2 arrived in southwestern Europe about the same time as agriculture. (from 23andMe)