Title: Governor of Chikuzen
Lord: Mōri Kōmatsumaru → Mōri Motonari
Father: Akagawa Fusanobu
Siblings: Motomitsu, Narihide, Motoyasu, Motohisa
Wife: Daughter of Inoue Motokane
Children: Motohide, Yasuchika, Motomichi
Akagawa Narihide served as a retainer of the Mōri clan of Aki Province. The Akagawa clan were a branch of the Kobayakawa descended from the Dohi and Kanmu-Taira clans.
Narihide was the second son of Akagawa Fusanobu. Narihide became the successor to the clan following the death in battle of his older brother, Motomitsu. In 1523, upon the death of Mōri Kōmatsumaru, Narihide was one of a group of fifteen elders (including his younger brother, Akagawa Motoyasu) appealing for Mōri Motonari to become the successor as head of the Mōri clan. On 7/13 of 1532, a group of thirty-two retainers (including Narihide) added their individual seals to a written appeal to Motonari for a reconciliation of interests.
In 1524, when the Mōri switched their alliance from the Ōuchi to the Amago, Narihide was sent with other retainers of the Mōri as hostages to the Amago at Gassantoda Castle in Izumo Province. In 1525, the Mōri withdrew from their brief period of subservience to the Amago. Consequently, Narihide, along with Inoue Motosada and Mitsunaga Hidetoki, planned an escape from Gassantoda. The men were chased down by the Amago forces and only Narihide managed to survive.
In 1542, Narihide participated in the First Battle of Gassantoda Castle and served as a guide owing to his knowledge of the terrain in Izumo. He was further valued for his intimate knowledge of the castle and its surroundings. In 1555, after the Battle of Itsukushima against the Sue clan, Narihide joined in the Subjugation of Bōchō (Bōchō keiryaku), a campaign led by Mōri Motonari against the Ōuchi in their domain comprised of Suō and Nagato provinces. During this campaign, Narihide participated in the attack against Susumanuma Castle in Suō that resulted in a violent engagement with the Ōuchi.
Narihide was succeeded by his eldest son, Akagawa Motohide. His third son, Motomichi, succeeded Narihide’s younger brother, Akagawa Motoyasu, following Motoyasu’s death after being falsely implicated in the killing of Mōri Takamoto, the eldest son of Mōri Motonari, head of the Mōri clan.