Mike, it's either in Solzhenitsyn or else I read it on a Napoleonic web site, of which there are a multitude. Sorry I can't be more precise. But I'm sure I did read it somewhere, because I was so surprised by it.
At any rate, I thought it would be interesting to contrast and compare on the one hand, Marie Antoinette and Alexandra Feodorovna, and on the other, Louis XVI and Nicholas II.
At first glance, MA and Alexandra seem to have had little in common, aside from their tragic fates at the hands of revolution: MA was a social butterfly, flitting from one social event to the other - balls, the opera, etc., whereas Alexandra was very much a homebody, and seems to have suffered from some sort of anxiety disorder when confronted with large groups of people. Certainly she rarely appeared in public and then only at some risk to her emotional well being. Yes, both were beauties, but Alexandra much more conventionally so than Marie Antoinette, who was celebrated for her grace and posture but who had had the misfortune to inherit the Habsburg lip. And while Marie Antoinette was interested in going to parties and playing the role of shepherdess at Le Petit Trianon, Alexandra had more serious concerns on her mind, trying and failing to set up charity sewing circles amongst the women of the Russian aristocracy. Nevertheless, both had favorites they showered with special attentions - Marie Antoinette was devoted to the Duchesse Yolande de Polignac, while Alexandra spent much of her time with the ubiquitous Anna Vyrubova. And both favorites, like their mistresses, came in for much venomous abuse and vilification in revolutionary propaganda, which was often sexual in nature.
Nicholas II and Louis XVI, on the other hand, seem to have had much in common in terms of their personalities: both were non-intellectuals who prided themselves on being simple men. They enjoyed being outdoors and engaging in the pursuits of more common folk - Louis XVI liked to practice carpentry, while Nicholas II was fond of taking long walks and chopping wood. Both were well aware that they had not been educated to rule and both would have preferred to live out their lives as simple country gentlemen, devoted to their families. They looked back with regret at succeeding to the throne.
What else did these two couples have in common and in what other ways were they different? For example, were Nicholas II and Louis XVI both equally to blame for the fact that revolutions broke out in their countries? Or was one less responsible for this development than the other? Who do you have more sympathy for, Marie Antoinette and Louis XVI, or Alexandra and Nicholas II?