Ikkyū

Ikkyū (一休宗純, Ikkyū Sōjun; February 1, 1394 – December 12, 1481) was a Japanese Zen Buddhist monk and poet who had a great impact on the infusion of Japanese art and literature with Zen attitudes and ideals. He is perhaps best known for his radical approach to Zen, which included breaking Buddhist monastic precepts and his stance against celibacy.

Source: Wikipedia — https://en.wikipedia.org/wiki/Ikky%C5%AB