Depends how distracted England are from their first target of York. They seem to always mess up their first attempt to take the city, so provived you get in before the second and they can't mass the troops to take it off you its not so difficult. Personally I went for Inverness first and let the English have York, but I got to Caenarvon before they did.

Funnily enough I'm have a much harder time playing Turkish at the moment, mainly because of poor trade income.