This documentary presents persuasive evidence that the present Queen of England does not have a valid claim to the throne that she has occupied since 1952.
A legitimate claimant to the English throne must be descended from Henry II (reigned 1154-1189) in an unbroken line of descent in which all members were born legitimately, that is, their parents were married at the time of their birth. If a line of descent passes through someone who was born out of wedlock then no descendant of that person has a legitimate claim to the throne of England.
Now let us examine the family tree of Henry II. Here we see that Queen Elizabeth II traces her descent back through Victoria (reigned 1837-1901), James I (reigned 1603-1624) and Henry VIII (reigned 1509-1547) to Henry´s father Henry VII (reigned 1485-1509).
Henry VII descended from John of Gaunt (lived 1340-1399) who descended from Henry II. Unfortunately for the legitimacy of Henry VII´s claim to the throne, his descent from John of Gaunt was by way of the latter´s mistress (later wife) Katherine through her son John Beaufort. Since John Beaufort was born out of wedlock, this descent could not be used to legitimate Henry VII´s claim to the throne (though he was legitimized retrospectively by an act of parliament in 1397).
In order to support the claims of Henry VII´s future offspring and descendants (and for the purpose of ending the civil war between the Houses of York and Lancaster), in 1486 Henry married Elizabeth of York, daughter of Edward IV, who claimed to be descendant of Edward III (the father of John of Gaunt) and thus from Henry II. It is from the union of Henry VII and Elizabeth that all modern kings and queens of England are descended. But if Edward IV was illegitimate then none of his descendants (and thus none of Henry VII´s descendants) had or have a valid claim to the throne of England.
Edward IV´s mother, Cecily Neville (herself descended, via Katherine, from Edward III) was married to Richard, Duke of York.
According to Dominic Mancini, an Italian visitor to London in 1464, Cecily ´fell into a frenzy´ at news of the marriage of her eldest surviving son Edward IV to Elizabeth Woodville and, in her rage, made the astounding accusation that he was a bastard, adding that she would be prepared to testify before a public enquiry that this was indeed the case.
At the time of Edward´s birth it was rumored that his natural father was an English archer. In fact Edward was tall and (unlike his younger brother Richard III) did not resemble his father in physical appearance.
Although later known for her piety as well as her pride, it is rumoured that, in the summer of 1441, she [Cecily] had an affair with an English archer named Blaybourne based in the Rouen garrison in Normandy while her husband was elsewhere in France fighting. The future Edward IV is said to have been the result of this liaison.
According to documents discovered by Dr Michael Jones in Rouen Cathedral there was a 5-week period when Richard was 100 miles away from his wife, leading a military campaign against the French, during which Henry was conceived, so Richard could not have been Henry´s father, and so Henry´s parents were not married at the time of his birth. Moreover, only one of Henry´s parents (Cecily) was descended from Edward III and Henry II, and that line of descent was illegitimate (it was again via the union of John of Gaunt with Katharine). Thus Henry IV had no legitimate claim to the English throne, and so none of his descendants, including the present Queen of England, have had either.