Honganji Family Crest

Hongan-ji, also archaically romanized as Hongwanji, is the collective name of the largest school of Jōdo Shinshū Buddhism. 'Hongan-ji' may also refer to any one of several actual temple buildings associated with the sect. Nishi Honganji and Higashi Honganji are two major temples in Kyoto.
Data from: en.wikipedia.org