Today, 11/4/11, saw Prince William and Kate on their final public engagement some 18 days before the wedding. In the morning they opened a new school, Darwen Aldridge Community Academy, whilst the afternoon was spent at Witton Country Park. (BBC News).
From wiki, we note the ominous location of Darwen: The town stands athwart the River Darwen and the A666 road, with Blackburn to the north, and Bolton to the south.
And that it's name come from the Brythonic derw, or oak, the Druidic king of trees.
In my vampire post Old habits die hard, I noted many other "coincidences" which surround this date: the (alleged) Stone of Destiny return to Arbroath Abbey after repatriation, the Dunblane massacre, William's wings, William of Orange etc., and indeed it pops up in James Shelby Downard's KK33, being the birthdate of the town Ruby in Arizona.