In 2004, ''
Britain's Real Monarch'', a documentary broadcast on
Channel 4 in the
United Kingdom, repeated the claim that Loudoun, as the senior descendant of
George Plantagenet, 1st Duke of Clarence, was the rightful
King of England. This argument relied upon two disputed claims: first, that
Edward IV of England was illegitimate, based on the accusation that his supposed father,
Richard, Duke of York, was absent at the time when Edward is thought to have been conceived; and second, that the Plantagenet crown should have descended by male-preference cognatic primogeniture instead of
agnatic primogeniture and conquest. Also, Henry VI had placed an attainder on Edward after he was restored to the throne, and named George, Duke of Clarence, as heir to the throne after Henry VI and his legitimate issue. ==Personal views and family==