Master List of Ancient Masters 
Extensive list of brief biographies of ancient masters.
http://wwzc.org/translations/masterList.htmKuei-shan Ling-lu 
(771-853 C.E.) Successor of Pai-chang Huai-hai, and teacher of Hsiang-yen.
http://sped2work.tripod.com/kuei-shan.html
Dayi Daoxin 
A brief biography of Dayi Daoxin, the Fourth Patriarch of Ch'an.
http://www.angelfire.com/nc/prannn/dayi.html
Zen Ancestors Lineage Chart 
Requires Adobe Acrobat Reader: Detailed, well-laid out chart of the Zen Ancestors.
http://www2.kenyon.edu/depts/religion/fac/Adler/reln360/Images360/ancestors.pdf
Daman Hongren 
A short biography of Daman Hongren, the Fifth Patriarch of Ch'an.
http://www.angelfire.com/nc/prannn/daman.html
Qingyuan Xingsi 
A brief biography of Qingyuan Xingsi, Dharma-heir of the Sixth Ancestor, Huineng.
http://www.angelfire.com/nc/prannn/qingyuan.html
Nanyang Huizhong 
A brief biography of Nanyang Huizhong, Dharma-heir of Huineng, the Sixth Ancestor.
http://www.angelfire.com/nc/prannn/nanyang.html
Hui-K'o, the Second Ch'an Patriarch 
Biography of Hui-K'o, the Second Patriarch of Chinese Zen lineage, and student of Bodhidharma.
http://www.angelfire.com/electronic/bodhidharma/hui-ko.html
Patriarchs and other Great Zen Masters of Ancient China 
Teachings of the great masters of sudden illumination in ancient China -- the forerunners of Zen in Japan.
http://www.selfdiscoveryportal.com/ChanMasters.htm