Just a heads-up that I've changed her estimated birthdate from c1021 to c 1030, in line with the earliest Project Medlands estimate (which uses the dates of her mother and eldest son)
This makes her 16 in this saga description: "In 1046 Ragnvald surrounded Thorfinn, who was wintering in Mainland of Orkney, and set fire to the Hall at Orphir in which he was, but the earl tore out a panel at the back, and, escaping through it with his young wife Ingibjorg in his arms."