I'm glad you drew my attention to GD Georg. So, thank you.

Here is another post:
Just my two cents on Grand Duke Georgy's alleged marriage: in the Enciclopedia Universal Europeo Americana, a very reliable and most detailed encyclopaedia published in 70 volumes in Madrid in 1905-1930, which is full of biographical data on royals, it is said that Grand Duke Georgy Alexandrovich "married morganatically princess Orkowska, who gave him three children". When I first read that in the encyclopaedia, I thought it was just a mistake, since the Gotha and other reliable sources made no mention of such wedding. However, reading Mr. Greg King's post, now I guess it was a somehow widespread rumor in the early XXth century.
Who made mlle. Orkowska a princess for the encyclopaedia, that I don't know...
So, Georg had two wives and four children before his death:
After spending his final years remote from the court, Georgy Alexandrovich died at Abas-Tuman on 28 June 1899. So, by 1918 the four children would have been older than 17 years of age.
Surly someone must know about these children. The eldest would have been abt. 24. Do we know if the first child was a girl or a boy?
AGRBear