Duke of Cornwall Asser Ap Cyngen
940 BC - Yes, date unknown(
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- 1 Duke of Cornwall Asser Ap Cyngen [1] b. 940 BC d. Yes, date unknown
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- 2 Duke of Cornwall Bleiddud Ap Asser [1.1] b. 900 BC d. Yes, date unknown
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- 3 Duke of Cornwall Henwyn Ap Bleiddud [1.1.1] b. 880 BC d. Yes, date unknown
- Regan Ferch Llyr, of Britain b. 870 BC d. Yes, date unknown
- 4 King of Britain Marganus [1.1.1.1] b. 852 BC d. 807 BC
- 4 King of Britain Cunedagius [1.1.1.2] b. 850 BC d. 772 BC
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- 4 King of Britain Marganus [1.1.1.1]
- 3 Duke of Cornwall Henwyn Ap Bleiddud [1.1.1]
- 2 Duke of Cornwall Bleiddud Ap Asser [1.1]