Tatiana and Vladimir Kiknadze

Thank you! Really nice couple) And what about ON sitting on the bed of her "golden one"?
I agree, it may be sister's Romanov own room in the hospital. Like the place of this photo:

By the way, don't you think it could be Kiknadze at left? Looks like him and his order and watch is on place... If it is so, it is a portrait of two Tatiana's suitors - Ravtopulo and Kiknadze)))

I'd say those are definitely Kiknadze and Ravtopulo. And , yes, a little curious that both  of TN's suitors might pose together. We can surmise that each wishes the other were Tatiana, n'est-ce pas?