born:  c. 12th century
died:

place:
China
Chan master: ...
Chan disciples: ...
stories:

Osho
The Search: Talks on the Ten Bulls of Zen
(entire book uses the Ten Bulls)
Jap. Kakuan ______
Guo'an Shiyuan
                  oshobob  The Living Workshop                                         
                                                         Zen Masters
Basically, there were eight pictures, not ten;
and they were not Buddhist, they were Taoist.
Their beginning is lost. Nobody knows how they
started, who painted the first bulls. But in the
twelfth century a Chinese Zen master,
Kakuan,
repainted them; and not only that, he added two
more pictures, and eight became ten. The
Taoist pictures were ending on the eighth; the
eighth is emptiness, nothingness. But Kakuan
added two new pictures. That is the very
contribution of Zen to religious consciousness...

                                               --Osho
                                           The Search, ch. 1