Shitennō

From PuroresuWiki

Shitennō (四天王^?), a Japanese term normally referring to the Buddhist Four Heavenly Kings, is also applied to particularly famous or loyal retainers, in groups of four, to certain of Japan's most famous legendary and historical figures.

In puroresu, Shitennō usually refers to the four wrestlers who feuded each other as the main eventers of All Japan Pro-Wrestling in the 1990s: Misawa Mitsuharu, Kawada Toshiaki, Taue Akira, and Kobashi Kenta.