"QE1's love child"---LOL! And can we think of a less likely candidate for the father (hmmmm....it's brilliant: that whole Armada business was just a clever ruse...!)?!
There is evidence to support the idea that Marlowe had been working as part of Walsingham's underground spy network, and that the "great reckoning in a little room" wasn't just an ordinary argument over the bill, but it's probably impossible to know the deatils for certain.
Some of my other favourite crackpot theories, in terms of comic relief, are that QEI was the author of the plays (again, since she died in 1603, that was a pretty impressive trick!), or that he was in fact a MAN, baby (*another* neat trick---fooling all those ladies-in-waiting!!!)!