| | Thorfinn I Rollo Einarsson 890–977 Grelod Duncasdatter 898–… | | | | Einar Rognvaldsson 852–910 | | | | Rognvald I Eysteinsson 830–890 | | | | Ascrida Rognvaldsdatter 812–890 | | |
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| | | Earl Duncan of Caithness 871–965 Groa Thorsteinsdottir 873–914 | | | | Thorstein Olafsson 858–888 Thurid Eyvindsdatter 847–… |
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