Áed died at the end of his third stint, by drowning in a waterfall which was named Eas Ruaid, "the red's waterfall" (Assaroe Falls, Ballyshannon, County Donegal), after him; previously the waterfall had been called Ess Duinn, the "Rapid of Donn", and his death is described as a miracle of sea and mighty wind.
[1] Díthorba and Cimbáeth then took their turn, after which Áed's daughter, Macha Mong Ruad, demanded to rule in her father's place.
The reigns of Aéd and Díthorba are missing in the Lebor Gabála Érenn – after the previous High King, Lugaid Laigdech, is killed by Áed, a dinsenchas story about the founding of Emain Macha is interpolated, followed by the reign of Cimbáeth, who is said to have succeeded Díthorba and ruled for twenty-eight years.
[5] The Lebor Gabála synchronises Cimbáeth's reign to that of Alexander the Great (336–323 BC).
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