Wang Yuanji (王元姬) was Sima Yi's daughter-in-law by marrying his younger son Sima Zhao. Their son eventually overthrew the Wei emperor and became the first emperor. Later she was formally addressed as Empress Dowager Wenming (文明皇后).
Most of the posts under this tag comes from her "Shin Sangoku Musou" portrayal. For that portrayal, see Wang Yuanji (Shin Sangoku Musou).