Quick Christmas/Twelfth Night question

[Rahere]

The bulla central to my thesis on the religious-political trigger to the Renaissance is actually dated 5th January 1435, I've always had a little smile at the thought of the pope's ammenuesi suffering the privations of a religiously introspective Christmas with the thought that their missive, quite ground-breaking in its modest way, would be issued just before bedtime in the prospect of a right wing-ding the next day...