(CHICAGO) -- Oprah Winfrey promised to reveal a family secret on Monday's edition of her talk show and she certainly delivered.
The talk show queen revealed she has a half-sister -- a 47-year-old mother-of-two named Patricia who lives in Milwaukee.
Oprah said she had learned the "bombshell family secret," which "shook her to her core," right before Thanksgiving. Patricia had been given up for adoption as a baby in 1963, but didn't get information about her biological family until recently when she began trying to track down her birth mother. That's when Patricia came to learn she shares the same mother as Oprah. They have different fathers.
Oprah drove to Milwaukee over Thanksgiving to meet Patricia. She also said their mother, Vernita Lee, never told anyone she had given Patricia up for adoption.
Oprah said she revealed the news because there was no way the media wouldn't get hold of the story and she wanted to disclose the information to her viewers herself.
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