Wikipedia
Sanpitsu
The term Sanpitsu (三筆) or "three brushes" is used in Japanese to refer to a group of three famous Heian period calligraphers:
- Emperor Saga 嵯峨天皇, 786–842.
- Kūkai 空海, 774–835.
- Tachibana no Hayanari, 橘逸勢 c. 782-842.
Later groups of calligraphers were named in imitation of the original Sanpitsu.