| RULER | KINGDOM |
| Ajatshatru | Magadha |
| Prasenjit | Koshala |
| Udayan | Vatsa |
| Avanti Putra | Shurasena |
Later Rulers who Adopted Buddhism
- Ashoka, Kanishka, Harshvardhana and Pala rulers.
- Gautami was the first woman to enter Buddhist Sangha.
| RULER | KINGDOM |
| Ajatshatru | Magadha |
| Prasenjit | Koshala |
| Udayan | Vatsa |
| Avanti Putra | Shurasena |