Daiun Sogaku Harada (原田 大雲祖岳, Harada Daiun Sogaku; October 13, 1871 – December 12, 1961) was a Sōtō Zen monk who trained under both Sōtō and Rinzai teachers. He became known for his teaching combining methods from both schools. The Harada–Yasutani zen lineage founded by his disciple Hakuun Yasutani has become one of the major Zen traditions in the West. He is known as the "Great Cloud".
Source: “Harada Daiun Sogaku”, English Wikipedia (CC BY-SA 4.0), excerpt