I have been able to take a look at two of the three books by Hanlon.The Twilight of a Military Tradition has a section on the Castro War on pages 134 to 142. It lists some troop strengths but has no orders of battle or uniform descriptions.
When I examined The Hero of Italy I was more interested in any mention of tactics, but on pages 83-84 was the following concerning the uniforms of the Duke of Parma's army:
"One novel piece of kit was the uniform tunic, which the chronicler Boselli saw for the first time in July 1635, as the city was filling up with contingents ready to take the field. The duke's own regiment of 1,000 men wore green tunics (casache) [cassocks?], while later contingents of both horse and foot, numbering 1,000 men, wore similar yellow garments. A year previously, similar tunics had been distributed to soldiers hired in Castro on the instructions of Francesco Serafini, who apparently laid great store by them."
I am waiting for a response to my inter-library loan request for Italy 1636: Cemetery of Armies, but so far nothing has yet turned up. And at the prices I see for these books I doubt that I will be adding them to my library.
