Richard III of England maternal side was as previously thought. The paternal side, however, demonstrated some variance from what had been expected, with the DNA showing no links to the purported descendants of Richard's great-great-grandfather Edward III of England through Henry Somerset, 5th Duke of Beaufort. This could be the result of covert illegitimacy that does not reflect the accepted genealogies between Richard and Edward III or between Edward III and the 5th Duke of Beaufort. In 1485, following his death in battle against Henry Tudor at Bosworth Field, Richard III's body was buried in Greyfriars Church in Leicester. Following the discoveries of Richard's
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.