, also archaically romanized as Hongwanji, is the collective name of the largest school of Jōdo Shinshū Buddhism (which further sub-divides into the Nishi and Higashi branches). 'Hongan-ji' may also refer to any one of several actual temple buildings associated with the sect. Nishi Honganji (西本願寺) and Higashi Honganji (東本願寺) are two major temples in Kyoto. Early history The Hongan-ji was established as a temple in 1321, on the site of the Ōtani Mausoleum, where Shinran, the founder of the Jōdo Shinshū ("True Pure Land") was buried. The mausoleum was attended by Shinran's grandson (through daughter Kakushinni), Kakue. Kakue's own son, Kakunyo, became the first chief priest of the Hongan-ji and third monshu (spiritual leader), and dedicated it to the worship of Amitābha (Amida). The Hongan-ji first gained power and importance in the 15th century, when Rennyo became its eighth monshu. However, the Tendai sect based on Mount Hiei saw this expansion as a threat and attacked the Hongan-ji three times with its army of sōhei. Rennyo fled to Yoshizaki-gobō, where he established a new temple compound. During the Sengoku period, fearing the power of the monks of the Hongan-ji, Oda Nobunaga tried to destroy it. For ten years, he laid siege to the Ishiyama Hongan-ji in Osaka, one of the two primary temple fortresses of the sect. In 1580, the abbot of the Ishiyama Hongan-ji, Kennyo, surrendered, while his son Kyōnyo refused to surrender, for which he was publicly disowned. After the death of Nobunaga in 1582 and the ascent of Toyotomi Hideyoshi, Kennyo was rewarded for his opposition to Nobunaga by being granted land in Kyoto, at the site of modern-day Nishi Hongan-ji (西本願寺, "Western Hongan-ji"; sometimes called the Honpa Hongan-ji 本派本願寺). He was succeeded by his legitimate son, Junnyo, as abbot in 1592. While his brother Kyōnyo re-established the Osaka Hongan-ji in 1596 with local support, owing to his refusal to surrender to Nobunaga earlier. After the death of Hideyoshi in 1598, Kyōnyo openly supported Tokugawa Ieyasu, who became shōgun in 1602. In reward for his loyalty, Kyōnyo was rewarded with land for a temple in Kyoto to the east of Nishi Honganji, which then became known in 1603 as Higashi Honganji (東本願寺 "Eastern Hongan-ji"). In 1619 the government recognized the two entities as separate congregations. It is popularly believed, however mistakenly, that the institution was split in two in order to maintain control of the order.