And as you mention Danae was a virgin. As supposedly was Semele -- mother of a dying and resurrected god. And Adonis born of Myrrh, and Attis born of Cybele.
But not virgins after the divine intercourse!

That was a truly extraordinary (and ridiculed) claim.
But only certain groups think that of Mary. Most do not hold to the doctrine at all.
Adonis came back to life? Not as far as I know. he was killed by a boar, his blood gave rise to flowers and he ended up in the underworld. The rebirth motif is pure Frazerian crap?
In some of the versions he returns for half of each year to be with Venus or Astarte depending on which mythic region under discussion.
Attis's blood gave birth to a pine tree. He never returned either. The Frazerian hypothesis that this was a vegetation seasonal god is belied by his retyurn as a coniferous rather than a deciduous tree!
In the Cybelean mystery religion, form what I recall, he was reborn since one of the rites was to mourn his death and then celebrate his rebirth. He was either gored by a boar in one version or castrated himself in another. One version underlies "The Golden Ass". Atargatis is supposed to be a version of Cybele, the Great Mother, though Apeulius was apparently a devotee of Isis -- he didn't portray the Atargatis followers very kindly.
While some versions have Attis only as a source of further life others seemed to have him reborn in the rites. I am not sure of the details if these were regional differences or what. Certainly in some of the rites pine trees were brought to the temple symbolizing him. It may be that some authors misidentified this as a rite of rebirth.
I am using a few different sources, some of which may not be entirely accurate. One is a series of lectures based off Robert Turcan's "The Cults of the Roman Empire" -- which I have not read myself. Another is one of those compendia that might not be too reliable -- "The Encyclopedia of Mythology"
Which Horus? I can never manage to find out which Horus is intended: Horus had so many associations y'see (well I guess you know - you clearly know your mythology very well indeed). I would have a thought a fertility God would have had the one bit Isis failed to find?
There is no such thing as "the Horus". There are many, many different versions of his myth. He probably began as a local sun deity and was incorporated into the Isis-Osiris myth.
Well, the one bit she failed to find supposedly explains the electric fish that swam about in the Nile. And it makes for a really weird regeneration myth since his member is the one missing piece that she has to fashion anew.
Which Baal? Again, this is very complex. Give em a source as i'm quite interested in Canaanite religion.
Ultimately like with Horus they are all the same god with all the many contradictions. The many Baal's of the Bible arise from the fact that Ba'al just meant 'god', as I'm sure you know. Let me see, IIRC the primary source for these myths is the "Epics of the gods", pieced together from the Ugarit tablets. I would have to look it up, though, to be sure.
Really? Interesting. What's the source? I don't doubt you it's just not something I know of, and i have written extensively on the mystery Cults, but am not as well versed in Egyptian mythology.
Whoops, did I say Isis? I meant to say Inanna. My mistake.
That was Sir James Frazer's thesis back in 1902 in The Golden Bough, but as any contemporary classicist will tell you it does real violence to the original mythologies in an attempt to force them to fit this pattern. The idea is extremely popular, but not held by modern scholars. See Hutton in the The Triumph of the Moon for a recent non-technical discussion in an excellent book.
Yep. But the myths are still the myths. The problem with Frazier was that he overdid it, much like Joseph Campbell does, trying to fit every every myth into his framework. And that he posited an actual ritual death for the king in most societies that the myths supposedly replayed. From what I know most scholars reject the over-arching plan and the death of the king motifs but have maintained the idea that the well identified dying and resurrected gods were fertility symbols. Persephone undoubtedly was. Dionysus was much more complex. Osiris and Attis clearly seemed to be.
Ulansey et al. Maybe. I would say it is a convincing hypothesis, but not really demonstrated to proof level. I have not managed to get a reply from David Ulansey, but his book is excellent and I think he is on to something. I would recommend Clauss' Roman Cult of Mithras for anothe rinteresting recent book on Mithraic Studies.
Ichneumonwasp you know your stuff, and it's a pleasure to discuss these things with you.
cheers
cj x
And may I return the compliment? I find myth fascinating.