Original: Nene, wife of Toyotomi Hideyoshi, was known to overrule her husband's decisions at times and Yodo, his mistress, became the de facto master of Osaka castle and the Toyotomi clan after Hideyoshi's death.
Simplified: The Toyotomi Hideyoshi's (1536 – 1598) mistress became the real master of Osaka castle after his death.