Dr John Ashdown-Hill was a well-known medieval historian, having published extensively on a variety of topics within that period but focussing mainly on the Yorkist era.

He is best-known for his pivotal role in uncovering the burial place of King Richard III for and for tracing collateral female-line descendants of Richard s elder sister to establish his mtDNA haplogroup, which matched the mtDNA of the bones found in the Leicester car park.

In 2015 he was awarded an MBE for services to historical research and the exhumation and identification of Richard III.

Philippa Langley inaugurated the quest for King Richard III's lost grave as part of her ongoing research into history's most controversial monarch. Her project marked the first-ever search for the grave of an anointed King of England, and was made into the acclaimed TV documentary The King in the Car Park for Channel 4. She is a screenwriter and the secretary of the Scottish Branch of the Richard III Society.

David Johnson is a passionate First World War historian and is the author of "The Man Who Didn't Shoot Hitler: The Story of Henry Tandey VC" and eight other titles.