It was rumored that Lady Jo disturbed the relationship between Injo and Queen Jangryeol, with the intention to tear them apart.
Since the day she reached the rank of Soyong, she would badmouth them in front of Injo and it became a common thing for her to slander them with false accusations.
The acupuncturist who treated Prince Sohyeon before his death was Yi Hyeong-ik, who was rumored to be in a relationship with Lady Jo's mother.
Lady Jo was sentenced to death by poisoning and her mother, who was also an accomplice, died before she could receive her punishment.
There were officials suggesting for Jo to be stripped of her position as a royal consort but out of respect for his father, who treasured her, King Hyojong did not go through with the idea.