In 456, king Peroz I of Persia demanded that the Iberians joined his expedition against the Byzantine Empire. King Vakhtang refused to comply and a Persian army attacked the country. The forces were uneven and the Iberians suffered defeat. Rajden, who headed a defence of the Armazi fortress at the capital Mtskheta, was captured alive and sent to the Persian court. After a brief imprisonment, he was handed over to the Persian governor of Tsromi, Georgia. He was ordered to renounce Christianity, but Rajden refused. Subjected to extensive tortures, he was finally crucified and struck by several arrows.
His relics were later transferred to a Nikozi Church near the town of Tskhinvali.