John Dee, the mathematician, astrologer and royal adviser who conducted the sessions that produced the Aethyrs, was one of the most learned men in Elizabethan England, amassing one of the largest private libraries in the country at his house in Mortlake and advising Elizabeth I on matters ranging from navigation to the calendar. His scryer, Edward Kelley, brought a considerably less respectable background to their partnership: before the two men met in 1582, Kelley had reportedly been convicted of forgery or coining and, by some later accounts, had lost his ears as the punishment for it, a detail Dee's own diaries never mention directly but that shaped Kelley's later reputation among historians who doubt his honesty.
That doubt runs through modern assessment of every Aethyr, ARN included, since the entire content beyond the bare three-letter name and its Governors rests on Kelley's word alone, spoken aloud while Dee wrote it down, with no independent witness to confirm what Kelley actually saw or claimed to see in the scrying stone. Frances Yates, the historian of Renaissance esotericism, called Kelley an outright fraud; other scholars are more cautious, noting that Dee's diaries are excellent evidence of what Dee sincerely believed was happening but poor evidence of what, if anything, was objectively true, a gap that the Second Aethyr's own extremely thin original record, a name and a list of Governors and nothing more, does nothing to close.