Lifespan: 15xx to 1564 (?), 1567 (?)
Lord: Takeda Nobutora → Takeda Harunobu (Shingen)
Father: Amari Torayasu
Siblings: Nobumasu, Nobutada, sister (widow of Annaka Kageshige), sister (wife of Sakanishi Saemon), sister (wife of Hoshina Masanori), sister (wife of Shizume Tadazane)
Wife: Daughter of Kanemaru Heizaburō
Amari Nobutada served as a bushō during the Sengoku period. Nobutada served as a chief retainer in a multi-generational lineage of retainers of the Kai-Takeda clan. In later years, Nobutada was named as one of the Twenty-Four Generals of the Takeda. Nobutada received one of the characters in his name from Takeda Harunobu (Shingen), the head of the Takeda clan. Under another theory, he received a different character in his name from Harunobu and adopted the name of Haruyoshi.
Nobutada was born the son of Amari Torayasu, a former chief retainer of the Takeda. Torayasu, along with Itagaki Nobukata, served in the highest position among retainers of the Takeda. Another member of the Amari clan within the Takeda family was Amari Nouyasu, who was either Nobutada’s younger brother or son. In 1542, an older brother named Amari Nobumasu died in action at the Battle of Sezawa. This may have resulted in Nobutada becoming the designated successor of Torayasu.
In 1548 during the era of Harunobu, Torayasu and Nobukata were killed in action during the invasion of Shinano Province. Nobutada inherited the family and, together with Itagaki Nobunori, became leaders among the retainers of the Takeda.
Nobutada first appears in a writing signed by Nobutada and Nobunori in the seventh month of 1551 to permit fund-raising by the Miwa Shrine. In the era of Shingen, Nobutada served as a toritsugi, or mediator. When the Kiso clan invaded western Kōzuke from the direction of Shinano, Nobutada mediated on behalf of the Urano and Kanbara clans of Kōzuke. He further mediated between the Satake and Oda clans of Hitachi Province representing groups from the Kantō on one side, and Nagai Michitoshi and others from Mino and Hida on the other. Nobutada also participated in diplomacy with the Gohōjō of Sagami Province.
Around 1564, he adopted the name of Nobutada. His name last appears on a tax exemption license dated in the eighth month of 1567. The year of his death is uncertain, and may have been in 1564, or in 1566 after falling from a horse. Under another theory, he made contributions at the Battle of Mikatagahara in 1572 but died of illness soon thereafter. His son, Nobuyori, was very young at the time, so his younger brother, Nobuyasu, served as his replacement.
Nobutada’s name does not appear on written pledges submitted between 1566 to 1567 by generals of the Takeda to Shingen; however, Nobuyasu’s name does appear, so he is believed to have died between the end of 1567 and 1575.