Yokozeki Iho

Born in 1762, Yokozeki Iho was the first professional woman in Japan. She studied Go from 1774, aged 13, and became 1 dan in 1778. Date of her death is unknown.

Some link

John F. No. The birth year is unknown. We only know that she was 17 in 1778. That means the likely birth year is 1762 (oriental count).

valerio: 1761 was a typiyng mismatch. The source of this page is http://homepage2.nifty.com/figo/GoWho/gwmain.html (and there the birthdate is 1762).