Ajatasattu

Bimbisara's son and thus prince of Magadha. He is imprisoned in book 6 because he shot and almost killed Buddha with an arrow. He falls in love with a blue-eyed blonde slave named Yudelka, and vows revenge on his father when she is murdered. Ajasattu, with the help of Devadatta, overthrows his father. The guilt causes him to have a malignant tumor, which Buddha cures. Source: Wikipedia