Jōdo-shū (浄土宗?, "The Pure Land School"), also known as Jōdo Buddhism, is a branch of Pure Land Buddhism derived from the teachings of the Japanese ex-Tendai monk Hōnen. It was established in 1175 and is the most widely practiced branch of Buddhism in Japan, along with Jōdo Shinshū.
Hōnen was born in 1133, the son of a prominent family in Japan whose ancestry could be traced back to silk merchants from China. Hōnen was originally named Seishimaru after the mahāsattva Seishi (Sanskrit Mahāsthāmaprāpta). After a rival official assassinated his father in 1141, Hōnen was initiated into his uncle's monastery at the age of 9. From then on, Hōnen lived his life as a monk and eventually studied at the famous monastery of Mount Hiei.
Hōnen was well respected for his knowledge and for his adherence to the Five Precepts, but in time, Hōnen became dissatisfied with the Tendai teachings he learned at Mount Hiei. Influenced by the writings of Shandao, Hōnen devoted himself solely to Amitābha as expressed through the practice of nembutsu.
In time, Hōnen gathered disciples from all walks of life, and developed a large following, notably women, who had been excluded from serious Buddhist practice up to this point. This included fishermen, prostitutes and fortune tellers. Hōnen also distinguished himself by not discriminating against women who were menstruating, who were thought at the time to be unclean. All of this caused concern among the religious and political elite of Kyoto and eventually Emperor Go-Toba issued a decree in 1207 to have Hōnen exiled to a remote part of Japan and given a criminal's name. Some of Hōnen's followers were executed, while others, including Benchō, Ryukan and Shinran, were exiled to other regions of Japan away from Hōnen.