Additional Information:
There are two temples that have called themselves Temple 30 in the past, and the feud between them over which has the right to use the name was long standing.
The original Temple 30, Zenrakuji, was built on the orders of Emperor Shōmu and reestablished by Kōbō Daishi, with Kōbō Daishi getting credit for having founded the temple. The feud began in 1868 when Zenrakuji was damaged in riots during the resurgence of Shintōism and the Buddhist purge following the Meiji Restoration. The temple was located on the same grounds as the Shintō shrine and thus severely damaged. The honzon and the statue of Kōbō Daishi were moved temporarily to Temple 29.
In 1893, the honzon was moved from Temple 29 to Anrakuji (also founded by Kōbō Daishi), which then began calling itself Temple 30. In fact, during for over a half a century henro were actually forbidden to visit the original grounds of Zenrakuji.
In 1929, supporters of Zenrakuji transferred the rights to an old and unused temple in the Tokyo area to the site of the destroyed Zenrakuji. Since the government restricted the building of new temples, if they hoped to rebuild Zenrakuji, they had to use the rights to an already existing temple. At that time, however, they only had enough money to place a marker on the site of the temple and not enough to actually build it. But, this allowed them to reestablish the temple, at least in name.
In 1938 followers of Zenrakuji built a small temporary building and got the statue of Kōbō Daishi back from Temple 29. But, Anrakuji refused to return the honzon and continued to call itself Temple 30. The dispute continued until 1942 when it was decreed that the temples must merge at the end of a three year period, with Anrakuji the title of Okunoin, and Zenrakuji reassuming the title of Temple 30.
Nothing happened after the three years and more negotiations ensued. In 1952 Anrakuji was declared Temple 30 and Zenrakuji was named 'A Place of Historical Importance.' Zenrakuji was changed to the same sect as Anrakuji and the same head priest was named over both temples.
However, sometime since the mid-1970s, or so, another reversal has taken place. The honzon is now at Zenrakuji, and this is now listed as Temple 30. Anrakuji is now listed as the Okunoin.
