Lifespan: Tenbun 16 (1547) to 4/25 of Tenshō 15 (1587)
Title: Assistant Vice-Minister of the Sovereign’s Household
Lord: Mōri Motonari → Mōri Takamoto → Mōri Terumoto
Father: Amano Takashige
Adoptive Father: Amano Takayoshi
Mother: Daughter of Amano Okisada
Siblings: Motoaki, Takehiro, Motosuke, Mototomo, Motoyoshi, Motonobu
Wife: [Formal] Daughter of Amano Takayoshi
Children: Motoshige, Motonaga, daughter (wife of Amano Mototoki), daughter (wife of Kumagaya Kiyonao), daughter (wife of Hayashi Mototsugu), daughter (wife of Tanaka Motosada)
Amano Motosuke served as a bushō during the Sengoku and Azuchi-Momoyama periods. He was a retainer of the Mōri clan. He was born as the third son of Amano Takashige and became the adopted son-in-law of Amano Takayoshi.
The Aki-Amano clan were members of the Kudō clan under the Fujiwara-Nanke – a branch of the Fujiwara family. The Amano clan moved to Aki Province and evolved into kokujin, or provincial landowners. Motosuke’s lineage came from the Kinmeizan-Amano clan that began with Amano Masasada. Other kokujin from Aki including Amano Okitsugu, Amano Okisada, and Amano Motosada came from the lineage of the Fukino-Amano clan.
In 1547, Motosuke was born as the third son of Amano Takashige, a kokujin associated with the Ōuchi clan.
After Ōuchi Yoshitaka killed himself at the Tainei Temple Incident on 9/1 of 1550, Takashige’s younger brother, Amano Takayoshi, also martyred himself for Yoshitaka. Takayoshi did not have any sons and only one daughter so Mōri Motonari wed Takayohsi’s daughter to Motosuke, whereupon, as an adopted son-in-law, Motosuke inherited the family and a fief of 60 koku in the village of Ōuchi in the Yoshiki District of Suō Province.
After his coming-of-age ceremony, Motosuke was ordered by his father, Takashige, to guard Gassantoda Castle in Izumo Province. After the Bitchū Conflict that ran from 1574 to 1575, Motosuke joined his brother, Amano Motoaki, the guard Bitchū-Matsuyama Castle. On 1/23 of 1576, Mōri Terumoto recognized Motosuke’s efforts to guard the castle and, after the situation settled down in Bitchū and Mimasaka provinces, promised to award him land worth 300 kan. On 1/24, Motosuke received an initial grant of 100 kan in Furuse and, after the end of his assignment, the balance. Motosuke also received written commendations for his military contributions. From 1586, Motosuke participated in the Kyūshū Pacification led by Toyotomi Hideyoshi, but, on 4/25 of 1587, died of illness while aboard a ship off the coast of Hakata in Chikuzen Province. He was forty-one years old. His eldest son, Amano Motoshige, inherited the family of Motosuke’s older brother, Motoaki, so his second son, Amano Motonaga, was allocated a fief of 100 koku from Motoshige and inherited the family.