Polly, where did you find that info. on Elizabeth Rex? That is very interesting!
I have quite a few references. Of course, some are circumstantial, but to this C16 & C17 scholar, quite convincing.
The fact of Francis Bacon's Parentage--the legitimate son of Queen Elizabeth and therefore the legal heir to the Throne---is indubitable, supported as it is , not only by a mass of circumstantial evidence but by such direct testimony as
Leicester's letter to King Philip of Spain, which Mme Deventer von Kunow discovered among the Spanish State Archives, begging King Philip to use his influence with Queen Elizabeth to secure his public acknowledgment as Prince Consort........No one can possibly follow Mme D. von Kunow's revelations and remain unconvinced.--Williard Parker in the Foreword to
Francis Bacon, Last of the Tudors
The 1895 edition of British "Dictionary of National Biography" Vol.16 p114 under the heading "Dudley" :"Whatever were the Queen's relations with Dudley before his wife's death, they became closer after. It was reported that she was formally betrothed to him, and that she had secretly married him in Lord Pembroke's house, and that she was a mother already." &emdash; January, 1560-1.
"In 1562 the reports that Elizabeth had children by Dudley were revived. One Robert Brooks, of Devizes, was sent to prison for publishing the slander, and seven years later a man named Marsham, of Norwich, was punished for the same offence."
And there is much more, but for the sake of brevity.....
A.L. Rowse, in "The Elizabethan Renaissance", vol.1:
"Of course, in the country and abroad, people talked about the Queen's relations with Leicester. In 1581 Henry Hawkins said that my Lord Robert hath had five children by the Queen, and she never goeth in progress but to be delivered." Other such references occur in the State Papers."
A.L. Rowse was an eminent, prolific and prestigious Oxford and Huntington history scholar and the world's leading Elizabethan expert. I would never lightly discount his works. If Rowse says that there's reference to this in State Papers, then I believe him!
And,
'As a boy, and as a young man, Bacon was always persona grata at Court, although he had no official position and no title. In The Life of Francis Bacon,the first published biography of Bacon, by Pierre Amboise, 1631, he writes:
"Francis Bacon saw himself destined one day to hold in his hands the Helm of the Kingdom. He was born of the purple."
I'm quite interested in all of this myself, Russophile, but as it's probably only of fleeting interest to many on this board, I'd be happy to continue the discussion via PM, should you wish.