Sitting on the ground: T.H. Princess Ekaterina and Prince Vsevolod Ioannovich of 
Russia.

Sitting, from left to right: H.R.H. Princess Elena of Romania, H.M. King 
Aleksandar I, H.M. Queen Marie, H.M. Queen Marie of Romania, H.M. King Ferdinand 
I of Romania, H.R.H. Princess Beatrice d'Orleans, H.I.H. Grand Duchess Kira of 
Russia.

Standing, from left to right: H.R.H. Princess Ileana of Romania, H.H. Princess 
Helen of Russia (sister of H.M. King Aleksandar I), H.R.H. Prince Alfonso 
d'Orleans, H.R.H. Duke of York (future King George VI), H.R.H. The Crown Prince 
Carol of Romania (future King Carol II), H.R.H. Duke of Genua, R.R.H. Prince 
Nicolae of Romania. H.R.H. Princess Irene of Greece, H.R.H. Prince Paul 
Karageorgevich (son of H.R.H. Prince Arsen). H.R.H. Prince Arsen Karageorgevich 
(uncle of King Aleksandar I).