In Camelot - Arthur rides a white horse and of course, there's Babylon

Not so strange bedfellows

http://www.nypost.com/p/news/national/madonna_jackie_whoa_RZpR8KTlANVdzAj3M6O9IP

The author of the book is named, "RoseMarie" - as Holy Grail of a name as there could be.

JFK = Camelot = King Arthur
Madonna = Mother of Jesus

In a roundabout way, ties up several things.

Isis the bull?

http://the-red-thread.net/God-of-Taurus.html

So, does this Venus Transit represent DIANA/ISIS, mother of William?

"I believe Wills can rebuild Camelot and I will be his Merlin. Together we will return to the chivalry, pageantry, and the glory that was King Arthur's Court. William will remake the British Monarchy by showing love, leadership, and compassion." 
- Princess Diana shortly before her death