Buddhadasa of Anuradhapura
Buddhadasa was King of Anuradhapura in the 4th century, whose reign lasted from 341 to 370. He succeeded his father Jettha Tissa II as King of Anuradhapura and was succeeded by his son Upatissa I. He pioneered in building many hospitals in the country. Mahavamsa describes Buddhadasa as a "Mind of Virtue and an Ocean of Gems." and he is known for his medical knowledge.