There are many examples of the posthumous names from Emperor Gosaga in the Kamakura period to Emperor Gokomatsu in the period of the Northern and Southern Courts, as well as in the Muromachi period, after which it stopped for next seven generations; the posthumous name of Gomizunoo was the first one after two centuries, after Emperor Gokomatsu.
遺諡は、鎌倉時代の後嵯峨天皇から南北朝時代・室町時代の後小松天皇にかけて多くあったが、その後7代にわたって絶えており、後水尾の遺諡は後小松以来約2世紀ぶりである。