Nichiren (日蓮) (February 16, 1222 - October 13, 1282), born Zennichimaro (善日麿), later Zeshō-bō Renchō (是聖房蓮長), and finally Nichiren (日蓮), was a Buddhist monk of 13th century Japan. A controversial figure during his lifetime, he is the founder of Nichiren Buddhism, a major Japanese Buddhist stream encompassing several schools of often widely conflicting doctrine. Wikipedia
The definitive Wikipedia entry for Nichiren. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Nichiren