Who is Gudrid Eiriksdottir-Karlsefni from The Vinland Sagas: The Norse Discovery of America?

Gudrid Eiriksdottir-Karlsefni is a major character in both sagas. Her first husband is Thorstein Eiriksson, who dies from disease and whose corpse prophesies that she will marry a great man and have many powerful children. These things come to pass when Gudrid marries Thorfinn Karlsefni. The two have a son Snorri and after Snorri is married and Karlsefni dies, Gudrid makes a pilgrimage to Rome, builds a church in Iceland (thought to have been recently discovered) and lives out her life as a nun.