The four Princesses of Edinburgh: Marie, Victoria Melita, Beatrice, and Alexandra and their brother Prince Alfred: 1887.
Nicholas II and Victoria Melita of Hesse
That’s definitely not Nicky. I’m not 100% on who it is though.
I wonder if it is just one of her groomsmen. At first I thought it could be her brother but I don’t think it is.
Crown Princess Marie of Romania and her sister Grand Duchess Victoria of Hesse (Ducky) at Wolfsgarten c. 1900.
Grand Duchess Victoria Feodorovna (Ducky) and her daughters by Grand Duke Kyril Vladimirovich, Princesses Maria and Kyra Kyrilovna: 1915.
Grand Duchess Victoria Feodorovna of Russia (Ducky), Queen Marie of Romania, and Grand Duke Kyril Vladimirovich of Russia: 1920s.