Kieko Watanabe (渡辺喜恵子; November 6, 1913–August 8, 1997) was a Japanese novelist. She is best known for her Naoki Prize-winning work, Mabuchi-gawa (馬淵川). Many of her works were historical fiction.
Source: “Kieko Watanabe”, English Wikipedia (CC BY-SA 4.0), excerpt
