This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.
Heptarchic King gathers all seven Kings of John Dee's De Heptarchia Mystica, recorded from the angelic sessions Dee conducted with Edward Kelley in 1582 and 1583 and preserved today in Sloane MS 3191, each assigned to one day of the week and, by the system's day and planet correspondence, to that day's planet.
Bobogel rules Sunday and the Sun, his attendant prince in the same working Bornogo; Carmara rules Monday and the Moon, paired with the prince Hagonel, and the manuscript itself notes a scribal variant of his name, Marmara, explaining it as the same name with a silent M, which is why some secondary literature repeats Marmara as though it named a separate, eighth king. Babalel rules Tuesday and Mars, paired with Befafes; Bnaspol rules Wednesday and Mercury, paired with Blisdon; Bynepor rules Thursday and Jupiter, paired with Butmono; Baligon rules Friday and Venus, paired with Bagenol, and is a distinct figure from Carmara despite the overlapping variant spelling; Bnapsen closes the week ruling Saturday and Saturn, paired with Brorges.
The Heptarchia organizes these seven King and Prince pairs, one for each day, as a structure distinct from Dee's later Enochian Calls and the ninety one Aethyr governors, a distinction the atlas keeps rather than folding the Heptarchia into that later, better known system. Every one of the seven kings is attested by the same manuscript and the same 1582 to 1583 working, so the group's evidentiary basis is uniform even where individual names carry scribal variation.