It was written in the last days of January 1886 from Ella to her father. Irene is just quoted - that 86 visit (which is proved to have indeed happend by a letter from Ludwig IV. to his secretary Dr. Becker) is generally rather unknown I think.
Prince Heinrich was not mentioned in that quote but another letter indicates that one of the Russian "cousins" intended to propose to her
Thank you. The time frame that you mentioned has helped me to find some info I found some time ago in a German newspaper. On 23 february 1886, the
Darmstaedter Tagblatt wrote that Grand Duke Ludwig IV, Princess Irene, Baroness Wilhelmine von Senarclens-Grancy and
Fluegeladjutant Wernher had left for Berlin on the preceding Friday evening and that they had travelled on to St. Petersburg at 23h25 on Saturday evening. Alix apparently did not accompany them.