When was the last time a Japanese Emperor spent the night in a special Shinto shrine?

Question

Quizplus · Accepted Answer

In 1991, Emperor Akihito spent the night in the Ise Grand Shrine, a special Shinto shrine dedicated to the sun goddess Amaterasu. The shrine is considered the most sacred and important in Japan and is rebuilt every 20 years using traditional techniques. This tradition of the emperor spending the night in the shrine during the rebuilding process dates back over 1,300 years. Neither 1945 nor 1865 were significant years for imperial visits to Shinto shrines, and while Emperor Kōmei did visit the Ise Grand Shrine in 1845, there is no record of him spending the night there.

When Was the Last Time a Japanese Emperor Spent the Night