In his old age, he seems to have come under the spell of his youngest wife Tishyaraksha. It is said that she had got his son Kunala, the regent in Takshashila, blinded by a wily stratagem. The official executioners spared Kunala and he became a wandering singer accompanied by his favourite wife Kanchanmala. In Pataliputra, Ashoka hears Kunala's song, and realizes that Kunala's misfortune may have been a punishment for some past sin of the emperor himself and condemns Tishyaraksha to death, restoring Kunala to the court. Kunala was succeeded by his son, Samprati, but his rule did not last long after Ashoka's death.
The reign of Ashoka Maurya could easily have disappeared into history as the ages passed by, and would have had he not left behind a record of his trials. The testimony of this wise king was discovered in the form of magnificently sculpted pillars and boulders with a variety of actions and teachings he wished to be published etched into the stone. What Ashoka left behind was the first written language in