¹⁹Petrie, George. "On the History and Antiquities of Tara Hill." The Transactions of the Royal Irish Academy, vol. 18, 1839, pp. 28-9.

Petrie, citing Tighernach (11th century CE), states that Cimbaoth, the seventy-fifth monarch of the list (305 BCE) is the first of the Irish kings that should be considered authentic.