By family tradition the pearl and cluster brooch was given by Queen Victoria to her second daughter Princess Alice and descended trough the family as follows:
Princess Alice of Great Britain, married the Grand Duke Louis of Hesse. They had one son and four surviving daughters, Victoria, Irene, Elisabeth and Alix.
Princess Alix married Czar Nicholas II, Princess Elizabeth-called Ella - married the Grand Duke Serge Romanov, and Princess Irene married Prince Heinrich of Prussia.
Princess Victoria married Louis of Battenberg, 1st Marquess of Milford Haven 1854-1921. In 1917 Louis renounced the Battenberg name and took the surname Mountbatten.
They had two sons and a daughter.
The eldest son Georg of Battenberg, 2nd Marquess of Milford Haven 1892-1938 married Nadejda Countess of Torby, morganatic daughter of the Grand Duke Michel Mikhailovitch of Russia.
David 3rd Marquess of Milford Haven 1919-1970 married Janet Pryce, and their son inherited as George 4th Marquess of Milford Haven.
Above in the large picture we see Janet, Marchoness of Milford Haven, wearing the large diamond and pearl brooch of Alice Grand Duchess of Hesse, with the matching pearl earrings.
On the right side in the small picture we see Princess Victoria of Hesse, Battenberg-Mountbatten, 1st Marchioness of Milford-Haven, with the brooch, but without the pearl drop.
In the year 2000 four lots of the Battenberg Pearl Jewels were offered at auction, probably by Sarah Marchioness of Milford Haven, divorced from George in 1996.