About Thorvald Asvaldsson
Thorvald Asvaldsson (Old Norse: Þórvaldr Ásvaldsson) was the father of the colonizer of Greenland, Erik the Red, and grandfather of Leif Ericson, who visited North America centuries before Christopher Columbus. Thorvald's father was Ásvald Ulfsson, whose father was Ulf Oxen-Thorisson, whose father was Oxen-Thorir, brother of Naddodd, discoverer of Iceland.
Thorvald Ásvaldsson was born in Norway. He was exiled from Norway c. 960, during the reign of King Harald Fairhair, for the crime manslaughter. He left with his son Erik to northwest Iceland, where he died before 980.
translated from https://is.wikipedia.org/wiki/%C3%9Eorvaldur_%C3%81svaldsson
Thorvald Ásvaldsson was a settler in Hornstrandir. He and his son, Eric the Red were guilty of manslaughter on the periphery in Norway. They came to Iceland and took Þorvaldur land and lived on Drangar in Drangavik. After his death brought up Eric south Haukadal.
Thorvald the son Ásvaldr, Oxen-Thorir.