Misty Velvet Dawn Spann, 26, received a 10-year deferred sentence for illegally marrying 44-year-old Patricia Ann Spann, who went by Patricia Ann Clayton on their 2016 marriage license application, reported Tulsa World.
Authorities uncovered their relationship during a child welfare investigation five months later.
Misty Spann married her mother, Patricia Ann Spann, on 25 March 2015.
Patricia also told investigators when she reunited with her daughter "they hit it off".
Authorities say a state Department of Human Services child welfare investigator discovered information during an inquiry that led her to believe Misty Spann and Patricia Spann were in involved in an incestuous relationship.More news: Roy Moore's brother compares sexual conduct allegations to the persecution of Jesus
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Patricia Spann has said she thought the marriage was legal because she had lost custody of her daughter and two sons years ago and isn't listed on their birth certificates.
Police reported that the mother also married one of her sons in 2008. It's not the first time she has married one of her children. He said that after that marriage was annulled, Patricia set her sights on Misty, allegedly threatening her with poisoning and kidnapping if Misty refused. The marriage was annulled 15 months later after the son said it was incestuous.
Under Oklahoma law, marrying a close relative is considered incest whether or not a sexual relationship exists.
"Misty and Patricia told me they got married to basically defraud the state in order to receive more benefits under health care".
Patricia has pleaded not guilty to the charge, but has not yet appeared in court yet. "If that's what you want that's on you, but none of us kids want that, and now you got my sister behind bars because of your choices, why don't you let that sit on you as a mom'".
Misty Spann also set out to dissolve her and her mother's marriage, filing for an annulment "by reason of illegality and fraud" on September 1, according to online court records. The Spann children were raised by their paternal grandmother.