A notice board in its grounds tells us that the eponymously named Takuzōsu Inari was founded in 1620 by a senior monk of the Jōdo-shū Buddhist sect, Kakuzan (廓山). He was the head of a seminary for Jōdo-shū monks and trainees attached to the Denzū-in Temple (傳通院) in what is now Koishikawa in Bunkyō-ku. His most famous student may well have been Takuzōsu. In April 1618 he had turned up at Denzū-in saying he wanted to study Jōdo-shū doctrines and was admitted. He proved to be so adept that within three years he had mastered the sect's innermost teachings.
(Note: numbers in parentheses after kami names
refer to position in How Many Kami table)
From Merged Shrines
During the night of May 7, 1620 he appeared in a dream to Kakuzan, saying that he, Takuzōsu, was originally the Inari Daimyōjin of Chiyoda Castle, another name for Edo Castle. Having achieved his dream of mastering the Jōdo-shū doctrines he was about to revert to his Inari Daimyō role but would protect Denzū-in. Kakuzan thereupon dedicated a shrine to Inari Daimyōjin in the Denzū-in grounds, although another temple, Jigen-in ( 慈眼院) was named as the bettoji.
About 10 min on foot from both Korakuen and Kasuga Stations. It is difficult to do justice to this site in either words or photos. I use the word "site" because as far as I could see neither in the Takuzōsu Inari grounds nor its home page is the word 神社 used. The shagōhyō (stone pillar at the front of a shrine showing its name) describes Takuzōsu Inari as being the tutelary deity (chinju) of Denzū-in. That said, there are several structures around the site which can only be described as Inari Jinja, or perhaps more correctly as hokora (small shrines). To the side of the main hall there is a stairway leading down to a largish depression in the ground reikutsu the main feature of which is four torii tunnels at right angles to each other, each leading to a hokora. Scattered around the reikutsu are other hokora, kitsune, Buddhist statues, and a statue of Daikokuten overlooking everything. Well worth a visit.