, also called was the founder of the Kanazawa Bunko

Kanazawa Bunko

is a private museum located in Kanazawa Ward, Yokohama, Japan. This museum features a private collection of traditional Japanese and Chinese art objects, which is made accessible to the general public....

 (Kanazawa Library). He was a member of the Kanezawa branch of the Hōjō clan

Hojo clan

See the late Hōjō clan for the Hōjō clan of the Sengoku Period.The in the history of Japan was a family who controlled the hereditary title of shikken of the Kamakura Shogunate. In practice, the family had actual governmental power, many times dictatorial, rather than Kamakura shoguns, or the...

.

He was born to Hōjō Saneyasu in 1224. As his talent was discovered by his uncle Hōjō Yasutoki

Hojo Yasutoki

Hōjō Yasutoki was the third shikken of the Kamakura shogunate in Japan. He strengthened the political system of the Hōjō regency.He was the eldest son of second shikken Yoshitoki...

, Sanetoki was given important posts by four shikken

Shikken

The was the regent for the shogun in the Kamakura shogunate in Japan. The post was monopolized by the Hōjō clan, and this system only existed once in Japanese history, between 1203 and 1333...

: Yasutoki, Tsunetoki

Hojo Tsunetoki

Hōjō Tsunetoki was the fourth Shikken of the Kamakura shogunate. He was son of Hōjō Tokiuji and of a former wife of Adachi Kagemori, elder brother of Hōjō Tokiyori and grandson of Hōjō Yasutoki. He ruled from 1242 to 1246 and founded Kōmyō-ji in Zaimokuza. He is buried within the temple.-...

, Tokiyori

Hojo Tokiyori

Hōjō Tokiyori was the fifth shikken of the Kamakura shogunate in Japan. He was born to Hōjō Tokiuji and a daughter of Adachi Kagemori....

 and Tokimune

Hojo Tokimune

of the Hōjō clan was the eighth shikken of the Kamakura shogunate , known for leading the Japanese forces against the invasion of the Mongols and for spreading Zen Buddhism and by extension Bushido among the warrior class.- Life :Born as the eldest son of the regent and Tokuso Tokiyori of the...

. He began his career as the head of Kosamurai-dokoro in 1234 and then became Hikitsukeshu in 1252 and Hyojoshu in 1253. Due to illness, he resigned from all posts and took a rest at his residence at Kanezawa (modern-day Kanazawa

Kanazawa-ku, Yokohama

is one of the 18 wards of the city of Yokohama in Kanagawa Prefecture, Japan. As of 2010, the ward had an estimated population of 209,565 and a density of 6,760 persons per km². The total area was 31.01 km². The ward symbol, established 1987, expresses the image of sea, waves, and a sea...

), Yokohama

Yokohama

is the capital city of Kanagawa Prefecture and the second largest city in Japan by population after Tokyo and most populous municipality of Japan. It lies on Tokyo Bay, south of Tokyo, in the Kantō region of the main island of Honshu...

.

While attending to government affairs, he was dedicated himself to study. He studied under Kiyohara no Noritaka, who came to Kamakura

Kamakura, Kanagawa

is a city located in Kanagawa Prefecture, Japan, about south-south-west of Tokyo. It used to be also called .Although Kamakura proper is today rather small, it is often described in history books as a former de facto capital of Japan as the seat of the Shogunate and of the Regency during the...

 in Prince Munetaka

Prince Munetaka

Prince Munetaka was the sixth shogun of the Kamakura shogunate of Japan who reigned .He was the first son of the Emperor Go-Saga and replaced the deposed Kujō Yoritsugu as shogun at the age of ten...

's retinue. In 1258 he established a temple called Shōmyōji at Kanazawa and put a library within the temple to house his huge manuscript collection.