My wife's great grandmother was named Mathilde Adler and I believe she came from Franfurt am Main. She was born about 1856/1858 and married Carl Marks (Marx) in London on 29 April 1880. I'm not sure when she came to England. On her marriage certificate it says that her father's name was Marcus Adler and indicates he was already deceased at the time of her marriage. There is a family rumour that she was related to the Chief Rabbi of the British Empire, Marcus Nathan Adler although we have no evidence to this effect.
I wonder if you have ever come across Mathilde Adler and, if so, I would be very interested to learn any information you might have on her early life and family.