This is a story of conspiracy and betrayal, of a lust for power and a lost allegiance; the story of the man who killed King Richard III. In this documentary we set out to prove that the Welshman Sir Rhys ap Thomas, master of Carew Castle in Pembrokeshire, killed King Richard III, changing the course of British history. Sir Rhys ap Thomas had sworn allegiance to King Richard III. He had accumulated lands and status in Wales that were dependent, in part, on his loyalty to Richard. But at the Battle of Bosworth he betrayed him, fighting on the side of Henry Tudor. He dealt the fatal blow to Richard III. We uncover what drove Rhys ap Thomas to betray not only his master but a King – and we reveal his remarkable story; from a childhood embroiled in the War of the Roses and exile to the continent, to a determined and ambitious man who brought an abrupt end to the Plantagenet line, carving the way for his own rise to power at the heart of the Tudor dynasty. The original documentary was licensed by Nent to Little Dot Studios. Podcast edit production by Ance Priedniece You can find more from us on: https://www.youtube.com/timelinechannel https://www.facebook.com/timelineWH https://www.instagram.com/timelineWH If you would like to get in touch with the show, email us at [email protected]   See acast.com/privacy for privacy and opt-out information.