Also,
Ambassador Francis reports that on the New Years' reception for 1916, Nicholas spoke English only to the English and US delegations, French to the French, Italian and Spanish delegations. He then says that Nicholas went on to the Japanese delegation, speaking to them for 15 mintues, but he doesn't say in what language!
I will go find the Handbook in Bob's library and look thru it for your answers.
Edited: The Handbook does not answer your questions, sadly. We only have volume 1 of 2, never able to find volume 2, so perhaps the answer is there.