What story captures the narrator's imagination concerning Tsar Nicholas II in the book, Dreams of My Russian Summers?

One story that particularly interests the narrator is the story of the Russian Tsar, Nicholas II, visiting France with his wife, Alexandra. Charlotte recounts the events of his visit in vivid detail, reading from newspaper clippings she's saved all these years. She has even managed to save a copy of the menu that was served to Tsar Nicholas II and his wife.