The Gruges is a family. A boy named 
 Esi Gruge was born in 
 Obdab during the Spring of 1257. He was a Ogsist mystic. Then, he converted to 
 Ogsism. 
 Esi converted to 
 Ogsism during the Spring of 1281.
During the Spring of 1334, 
 Esi died from an illness. He was 77 years old.