Lady Jane Grey, de facto monarch of England and Ireland for nine days (born 1537; executed)

Lady Jane Grey, also known as Lady Jane Dudley after her marriage, and nicknamed as the "Nine Days Queen", was an English noblewoman who was proclaimed Queen of England and Ireland on 10 July 1553 and reigned until she was deposed by the Privy Council of England, which proclaimed her cousin, Mary I, as the new Queen on 19 July 1553. Jane was later beheaded for high treason.

February 12 is the 43rd day of the year in the Gregorian calendar; 322 days remain until the end of the year.