Kuang-hsiu ［広脩・広修］ (771–843) (PY Guangxiu;  Kōshū or Kōshu): A priest of the T’ien-t’ai school in China. He became a disciple of Tao-sui, under whom he studied the T’ien-t’ai teachings. He lectured on Great Concentration and Insight by T’ien-t’ai. When Ensai, a priest of the Tendai school in Japan, brought with him to China a list of thirty questions (fifty questions according to another account) about the T’ien-t’ai teachings in 839, Kuang-hsiu provided the answers. Among his disciples were Wu-wai, Wei-chüan, and Liang-hsü.