I don't know to be honest. I'm only fully researching the chapel in the last two or three weeks, and I'm not yet up to date on the sources. I'm toying with the idea of tackling the main chapel article, but it seems daunting. Modernist is suggesting that the ceiling might be a more manageable 
subject on the first outing, and maybe s/he is right. Either way, I'm only skirting around the chapel for the moment, and maybe my edit was a bit hasty. If so I apologise.