Maybe - I can overthink ?
I think in this case that there is not a lot of thinking to be done, though. We have few facts about Anne (or, indeed, about many historical characters from so long ago), that so much of what we think are 'facts' could very well be wrong. This one just seems so irrelevant to her story that all the objections just don't stack up (for me, anyway).
SUICIDE OF MY GRANDCHILD - NO HELP


