King Ajatashatru converted to the Buddha's teachings and embraced the Lotus Sutra

I am much distressed to hear that your illness has become so serious. Swords exist to cut down enemies, however, and medicine exists to cure sickness. King Ajatashatru murdered his father and made himself an enemy of the Buddha. But after foul sores broke out on his body, he converted to the Buddha's teachings and embraced the Lotus Sutra, whereupon his sores healed and he prolonged his life by forty years. 7/2

The Writings of Nichiren Daishonin
Reply to the Lay Priest Takahashi
Written to the Lay Priest Takashashi