Val Rourke will be taking part as a Royalist. He'll have just arrived with Narianne Altair, so they'll both be there.
Val -
http://z15.invisionfree.com/DarkEnchantmen...p?showtopic=160Nari -
http://z15.invisionfree.com/DarkEnchantmen...p?showtopic=155Wishing to point out that Richard, and Silvermoor, will not be aiding Westmarsh at this point, so anyone who wishes to help can do so without getting in Richard's way.
I figured out the castle we'll be using, which is actually Dover Castle

There is no visible sea - the entire castle is surrounded by forest with the Royal Highway leading out to the east
The garrison will likely defend the exterior walls as long as possible with archer cover from the higher vantage points of the interior walls
The garrison has enough food to last for roughly 6 months
The garrison has an overwhelming number of arms and armour - more than it has men to wear them
And the melody for the defense, because it seems to fit
http://www.youtube.com/watch?v=55nAwmVLQSkDefense will consist of, aside from the Royalists listed in Black's post:
800 refugees, 500 of which are women, children, elderly or otherwise unable to fight
1 Marshall, a strong and boisterous man by the name of Edwin Jonas
4 Captains, Val Rourke, Marcus Amadeus, Shaun DiCapio, Ronald McGunn
20 Knights, with horses, plate, full weaponry
90 Soldiers, regulars, swords, shields and bows
300 militia from the refugee numbers, sparsely trained, swords, shields and bows
Let's get it on!