He was born at the Mushanokōji mansion in Kyoto, the second son of the Lord Keeper of the Privy Seal Sanjōnishi Kin'yasu. His first name was Kinyo. The Sanjōnishi were court nobles descended from the Fujiwara, a house that valued learning such as waka and calligraphy. His mother came from the Kanroji family, and her relatives would later be a great support.
When his elder brother Sanetsura died, he was treated as heir to the house and renamed Kinnobu. At only three he received a court rank, and two days later was appointed chamberlain. Though still a small child, he now bore the heavy task of carrying on a noble house.
His father Kin'yasu died, and he inherited the house as a child. His mother's brother, Kanroji Chikanaga, became his guardian, managing family affairs and guiding his studies. Chikanaga was a learned noble well versed in court customs, and Sanetaka is thought to have learned much from his example.
The Ōnin War broke out in Kyoto and the city was engulfed in fighting. Sanetaka fled to Kurama-dera in the northern mountains, and the Sanjōnishi mansion burned down. Many nobles moved to the provinces, and old books and records were lost. This experience is said to have fed his wish to protect and pass on the classics.
He held his coming-of-age ceremony, was promoted to a guards officer, and took the name Sanetaka. Even as the war went on, he took part in court rituals and waka gatherings, fulfilling his duties as a noble. He was known for his beautiful handwriting, and in later years many asked him to copy books or write titles.
Around this time he began keeping a diary in Classical Chinese, the Sanetaka kōki, and kept it for over sixty years. It records court events, waka and renga gatherings, visitors and even household money in detail. It is a very important historical source on Kyoto at the start of the Warring States period.
Around this time he received Kokin denju, the secret interpretation of the Kokinshū, from the renga poet Sōgi. He and Sōgi were close friends across the gap in rank, and Sōgi even asked him to judge old waka manuscripts. With Ichijō Kaneyoshi and others, he became a central figure in protecting the culture of waka and the classics that the war had nearly destroyed.
He chose not his eldest son but his newborn second son Kineda as heir. His diary records that he had planned to make all his sons monks rather than force an untalented one to inherit, but changed his mind. He saw succession by a second son as a lucky precedent in the Sanjōnishi house, and Kineda later made his name as a scholar.
He was appointed Lord Keeper of the Privy Seal, a high court post, but resigned after only two months without even holding the customary celebration. War had impoverished the court and the nobles, and Sanetaka supported his household through ties with the shogun Ashikaga Yoshizumi and provincial lords and by calligraphy work. He was close to the Ōuchi of Suō and the Imagawa of Suruga.
He became a Buddhist monk and took the name Gyōkū. Even after this he continued his study of waka and The Tale of Genji and his copying of books. He compiled a genealogy of the characters of The Tale of Genji, laying the groundwork for his son Kineda's commentary. Many of his poems survive in collections such as the Setsugyokushū.
The young Takeno Jōō, raised in a Sakai merchant family, began to visit him, and Sanetaka taught him waka and the classics. Jōō studied the preface of Fujiwara no Teika's poetic treatise Eika no taigai, and is said to have applied its spirit to the tea ceremony. In this way the aesthetics of the court nobles that Sanetaka passed on spread into the culture of the townspeople.
He died in Kyoto. He had served three emperors and spent his life protecting the traditions of waka and the classics through an age of war. The Sanetaka kōki and the Kokin denju passed to his son Kineda and grandson Saneki, and later through Hosokawa Yūsai on into the Edo period.
Ichijō KaneyoshiSōgiTakeno Jōō
Ashikaga YoshimiHino TomikoHatakeyama MasanagaŌuchi MasahiroAshikaga YoshihisaHosokawa MasamotoAshikaga YoshitaneKanō Motonobu
People of the Muromachi period ・ People by period
Based on facts found in textbooks and biographies. Uncertain points are marked as such.