|  Also 
      written 二王. Also called *niten 
      二天 and Niouson 仁王尊. Lit. two kings or benevolent kings. A pair of temple 
      guardians who stand on either side of a temple gate. Their fierce faces 
      with glaring eyes, powerfully muscular bodies, and threatening poses bearing 
      weapons, serve to ward off evil spirits. Typically the Niou are represented 
      as nude from the waist up, although very early images wear chest armor. 
      Generally one opens his mouth, in the *agyou 
      阿形 position (the shape of mouth saying "a" あ ) and holds a thunderbolt 
      (Sk: vajra, Jp: *kongousho 
      金剛杵), while the other closes his mouth, in the ungyou 吽形 
      position (the shape of mouth saying "un" うん) and holds a large sword 
      . They are sometimes called *Kongou 
      rikishi 金剛力士 and Misshaku rikishi 密迹力士, respectively, indicating 
      two different aspects of one deity named Misshaku kongou 密迹金剛. However, 
      there are various opinions as to the identities of the Niou, and none seems 
      to clearly prevail. Iconographically, Niou are associated with *Shukongoushin 
      執金剛神. Chinese examples include large rock-cut sculptures at Longmen (Jp: 
      Ryuumon 竜門) and Yungang (Jp: Unkou 雲岡). The earliest Japanese examples are 
      the dry-lacquer *kanshitsu 
      乾漆 sculptures wearing armor and placed on the Buddhist altar, Shumidan 須弥壇 
      at Toudaiji  *Hokkedou 東大寺法華堂 (popularly called the Sangatsudou 三月堂, also known as Kongou rikishi; 8c), and the nude example at  Houryuuji 法隆寺 
      *Chuumon 法隆寺中門 
      (711). The best known Niou are the huge images at Toudaiji *Nandaimon 南大門 (1207) by Unkei 運慶 (?-1223) and Kaikei 快慶 (late 
      12c-early 13c).  |