Originally Posted by Vicky2010
who can help me to identify the person on the picture? Presumably a descendant of the Queen Victoria!
Not a descendant - a daughter-in-law.
correctly guessed, it is Grand Duchess Maria Alexandrovna of Russia
- the wife of Prince Alfred, Duke of Saxe-Coburg and Gotha and Duke of Edinburgh. The work is by the famous miniature artist David Mossman; it was painted around 1874 and is currently part of the Royal Collection. You can see the details of the miniature
at the royal collection website.