平将門
Myōken worship was particularly prevalent among clans based in eastern Japan (the modern Kantō and Tōhoku regions), with the Kanmu Taira clan (Kanmu Heishi) and their offshoots such as the Chiba and the Sōma clans being among the deity's notable devotees. One legend claims that Taira no Masakado was a devotee of Myōken, who aided him in his military exploits. When Masakado grew proud and arrogant, the deity withdrew his favor and instead aided Masakado's uncle , the ancestor of the Chiba clan. Owing to his status as the Chiba clan's "ujigami" (guardian deity), temples and shrines dedicated to Myōken are particularly numerous in former Chiba territories. Myōken worship is also prevalent in many Nichiren-shū Buddhist temples due to the clan's connections with the school's Nakayama lineage.