Founded in 1593 by the powerful samurai warlord Toyotomi Hideyoshi, Kongōbu-ji was established as a spiritual monument dedicated to immortalising his mother. This temple’s creation was more than just an act of filial piety, it became a lasting symbol of religious devotion and architectural mastery. Nestled in Koyasan, Kongōbu-ji quickly rose to prominence as a central hub for Shingon Buddhism, intertwining Hideyoshi’s legacy with the sacred landscape of Japan.