- Partnership with: (Unknown)
Ancestors of Magnus III OLAFSSON
/-Sigurd HALFDANSSON
/-Harald III SIGURDSSON
| \-Asta "Astrid" GUDBRANDSDATTER
/-Olaf III HARALDSSON
| | /-Thorberg ARNESSON
| \-Thora THORBERGSDATTER
| \-Ragnhild ERLINGSDATTER
Magnus III OLAFSSON
| /-Brusi (Brusee) SIGURDSSON
| /-Ragnvald (Rognvald) II BRUSESSON
| | \-Ostrida REGENWALDSDATTER
\-Thora RAGNVALDSDATTER
\-Fbelicia Princess Of NORMANDY
Descendants of Magnus III OLAFSSON
1 Magnus III OLAFSSON
=(Unknown)
2 Thora MAGNUSDOTTIR
=Loptur SAEMUNDSSON Marriage: ABT 1123, Oddi, Rangarvalla, Iceland
3 Jon LOFTSSON
=Halldora Skegg BRANDSDOTTIR Marriage: ABT 1147, Oddi, Rangarvalla, Iceland
4 Solveig JONSDOTTIR
=Gudmundur AMUNDSSON Marriage: ABT 1168
4 Saemundur JONSSON
=Ingveldur INDRIDADOTTIR Marriage: ABT 1175, Oddi, Rangarvalla, Iceland
4 Sigurdur JONSSON
=Salgerdur ERLENDSDOTTIR
=Aesa THORGEIRSDOTTIR
4 Thorsteinn JONSSON
=(Unknown)