Magnus III., Earl of Orkney Matilda.
and Caithness, d. 1275.
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+——––––——–—-+—––––––––———————+
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Magnus IV., Earl of Orkney John, Earl of Orkney
and Caithness, d. 1284. and Caithness, d. circa 1310.
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Magnus V., Earl of Orkney and
Caithness, m. Katharina, d.