The princess Jane Digby died at the age of 74. Here is all you want to know, and more!
Biography - A Short Wiki
Known as Lady Ellenborough, she was a romantically scandalous English aristocrat. She was considered promiscuous at the time, having four husbands and carrying on affairs with King Ludwig I of Bavaria and his son King Otto of Greece.
She was married to Edward Law, then Baron Venningen, then Spyridon Theotokis, and then Abdul Midjuel el Mezrab, and was the daughter of Admiral Sir Henry Digby and Lady Jane Elizabeth.