“sønn av enten Torgils Vikingson eller Hans Marteinson, begge gift med Gudrun Ormsdatter Lydvo.” (?)

Johannes was living at Aga in 1519 and paid the highest tax in Hardanger in 1521 (40 marks). There has been some confusion on whether he was the son of Torgils Vikingsson Aga or married to one of his daughters. The latest research lends to support the latter theory.
https://www.genealogy.com/ftm/a/r/e/Charles-L-Aren...E-0001/UHP-0567.html

Galte-ættens forfedre:
https://no.wikipedia.org/wiki/Galtung