A male friend of hers chimed in, telling me that I was entirely wrong about the historical context (he claimed that Gregory’s resignation came about because of the Protestant Reformation) and that “obviously” I was getting my information “from somewhere like Wikipedia.”
I then corrected him on his timeline (after all, the Council of Constance is a good hundred years before Luther’s Wittenburg moment), and proceeded to provide a brief history of the Great Schism.
He then corrected me again. At this point, my former student commented that I had been her professor….for medieval European history. His response? ‘oh.’