Battle of Gaugamela
Although the area of Babylon had never minted Darics or Sigloi, after the capture of Babylon by Alexander, the Satrap Mazaeus, reconfirmed by Alexander in his position for having opened the doors of Babylon to his armies after the Battle of Gaugamela, issued the double Daric of 16.65 grams in weight whose image was based on the Daric coin and bore his name until his death in 328 BCE.