Cultural depictions of Richard III of England of Tudor England, Ben Jonson wrote a play about Richard entitled "Richard Crookback". His portrayal of the king is unknown, as it was never published. However, it is unlikely to have departed from the negative portrayal of Richard, and probably followed the same pattern as Jonson's only other tragedies, written at the same period, "Catiline His Conspiracy" and "Sejanus His Fall", both of which are about ruthless usurpers who finally receive just retribution. Several ballads about the battle of Bosworth also survive from this period, some of which may date back to the immediate aftermath of the battle. Perhaps the
Richard III of England same direct maternal line. Joy Ibsen's mitochondrial DNA was tested and belongs to mitochondrial DNA haplogroup J, which by deduction, should also be the mitochondrial DNA haplogroup of Richard III. Joy Ibsen died in 2008. Her son Michael Ibsen gave a mouth-swab sample to the research team on 24 August 2012. His mitochondrial DNA passed down the direct maternal line was compared to samples from the human remains found at the excavation site and used to identify King Richard. On 4 February 2013, the University of Leicester confirmed that the skeleton was beyond reasonable doubt that of King Richard III.