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Ikagashikome (伊香色謎 or 伊迦賀色許売命, ? - after January 13, 1st year of Sujin) was a concubine of Emperor Kōgen and Empress consort of Emperor Kaika. She is written as 伊香色謎 in Nihon Shoki, and is written as 伊迦賀色許売 in Kojiki.
As a concubine of Emperor Kōgen, she gave birth of Hikofutsu-oshi-no-makoto no mikoto. After the death of Kōgen, she married Emperor Kaika and became Empress consort of him and mother of Emperor Sujin.
She was the daughter of Ōhesoki. She was concubine of Emperor Kōgen, with whom she had one child: Prince Hikofutsuoshinomakoto (彦太忍信命), who is a father of Takenouchi no Sukune (武内宿禰). Later, she married Emperor Kaika and gave birth to Emperor Sujin and Princess Mimatsuhime (御真津比売命). She was the empress dowager from the 1st year of Sujin.
Family
Paternal grandfather: Ōyakuchi-no-sukune no mikoto (大矢口宿禰命)
Unless otherwise noted (as BC), years are in CE / AD
individuals that were given the title of empress posthumously
individuals elevated to the rank of empress due to their position as honorary mother of the emperor
Shōshi served briefly as honorary empress for her younger brother Emperor Go-Daigo
Unless otherwise noted (as BC), years are in CE / AD
individuals that were given the title of empress dowager posthumously
title removed in 896 due to a suspected affair with head priest of the Toko-ji Temple; title posthumously restored in 943
was made High Empress or de jure empress dowager during her husband's reign