 Diadumenianus' reign lasted a total of 14 months, and he was about 10 years old when he died.Macrinus, upon learning of his son's death, tried to escape captivity, but he injured himself in the unsuccessful attempt and was afterward executed in Cappadocia; his head was sent to Elagabalus.Much like Macrinus, Diadumenianus' head was also cut off and sent to Elagabalus as a trophy.