Galienus
Gallienus was the 33rd emperor of the Roman Empire, and together with his father Valerianus, he reigned with the emperor in 260 BC as a sovereign emperor until 260-268. When his father Valerian was emperor in 253, Gallienus fought several times with the goths in the empire, ruling over the River Olla, and defeated the Alleman tribe alliance in Milan in 258. In Ingenius, He suppressed the rebellion of Regalianus. In June 260, Father Valerian became a sole emperor when he died as a prisoner of the Persian king Shafur I. However, the rebellion in the West led to the establishment of the Gaul Empire, and in the east, the ruler of Palmyra allowed the establishment of the Palmyra Kingdom, which later became independent of the Palmyra Empire. Syria, Egypt and Palestine were virtually independent of the Empire, It was unified again in the days of Emperor Nus.