Ptolemy V Epiphanes
The earliest mention of "máchimoi" on Ptolemaic documents is dating back to the reign of Ptolemy II Philadelphus (261 BCE) and refers to guard duties; this was not uncommon, as from many documents it seems that they sometimes were guards and sometimes had purely army duties. However, the most famous document mentioning them is the Rosetta Stone (Greek text, row 19) made under Ptolemy V Epiphanes (196 BCE), which refers to an amnesty for some deserted "máchimoi".