Things to look forward to tomorrow:
Lord Hattersley's views on Brexit were set out at the New Statesman last August in an article headlined, Why it is the duty of the Labour party to try to stop Brexit. So we can guess where's he's going to be guiding his Brexit-related point-scoring tomorrow.
(Of course, Henry VIII tried to take over swathes of France and wanted to be Holy Roman Emperor. So he was, at least initially, much more like Roy Hattersley).