Saturday, 2nd of May, 2020
There is the Enkyoji Temple (円鏡寺) founded by Kukai in Motosu-gun, Gifu Prefecture, under the imperial order by the 52nd Emperor Saga.
There is the Fujiwara no Fuhito's tomb (藤原不比等) on the line that connects the Enkyoji Temple (円鏡寺) and the Hata no Kawakatsu's tomb (秦河勝).
At the foot of the Fujiwara Fuhito's tomb, there is Agionji Temple(阿祇園寺) which was also founded by Kukai under the imperial order by Emperor Saga.
The Hata no Kawakatsu's tomb, the Fujiwara no Fuhito's tomb, and the Emperor Tenmu's tomb draw a special Kepler triangle.
The Fujiwara no Fuhito's tomb, and the Emperor Tenmu's tomb, and the Enkyoji Temple draw also nearly the Kepler triangle.
Putting the two figures together makes a really beautiful figure.
Kukai, who founded the Enkyoji Temple, must have known the exact positions of all tombs of Emperor Tenmu, Hata no Kawakatsu, and Fujiwara no Fuhito.