Maria Ivanovna Khlopova (died 1633), was a Russian noble, the fiancee of Tsar Michael I of Russia. Maria Ivanovna Khlopova was chosen via a brideshow to be the future bride of the tsar in 1616, and brought to live amongst the court. However, despite the Tsar’s fondness for Maria, a feud took place between her and her family and the tsar's mother, which lasted for several years. During one court function Maria vomited and collapsed, which caused whispers through the court that despite her apparent good health during the brideshow. She became frequently ill, and many suspected she had been poisoned, a common practice in the Russian court at the time. The perpetrator may have been Tsar Michael's mother the dowager empress because of their families' feuds, or possibly by one of the many other