The decan and term already recorded for this degree trace to two named ancient writers. Vettius Valens, writing in Greek around the year 175, divided each sign into three ten degree faces under a rotating planetary sequence, and this degree opens Cancer's third decan, ruled by the Moon, Cancer's own planet, reinforcing the sign's character rather than complicating it, while Ptolemy's Tetrabiblos separately preserves the Egyptian bounds table, keeping this degree under Jupiter's term still, the finer division not yet matching the new decan. Neither writer pictured anything, only ruled it. The first complete pictorial set for all 360 degrees survives whole in 1494, in Johannes Angelus's Latin Astrolabium Planum, safely public domain but never freely translated into English.
The next complete English set is Welsh minister John Thomas's, writing as Charubel in 1898, whose entry for this degree describes a king, an emperor, or a commander on horseback, three interchangeable titles for the same single figure of command. Practically, this degree is mostly used to time events through progressions or synastry. None of this technical layering depends on which picture tradition a reader consults, since the decan and term rulers were fixed centuries before either Charubel's book or the Sabian material gave this point in the zodiac a scene of its own.