Here you are biggs
https://www.findagrave.com/memorial/43491393/violet-albina-gibson
A while ago I had a ride planned from Newark to London (didn't do in the end due to severe weather) and I was going to pop into that cemetery to try to find the grave/pay my respects.
Mussolini "showed mercy" and she came back to the UK soon afterwards but it rather looks as if a shoddy deal was done to bang her up in an asylum for the rest of her life.
In a weird echo, years later when the Italian public decided to bestow their favours on Berlusconi (him and Benito are the two longest serving/most popular chiefs in Italian history) Berlusconi also suffered an attack which injured his nose and like Benito before him appeared with a bandage on it to show how he had been saved by God the Virgin Mary or whatever to continue his good works/trashing of Italy's reputation.
I don't know how close you are to there but if you go and find it please let me know - the grave might take a bit of finding as it is, as you can see, rather small and plain.
edit -
also this
https://en.wikipedia.org/wiki/Violet_Gibson
which I looked up as on reading that findagrave text I was pretty sure, from my memory of reading a book about her, that Benito wasn't shot in his car but when strutting his stuff amongst the adoring crowd - wiki confirms that - not altogether surprising as that grave site text also mi-spells Italian!
You can see from the wiki entry how close she came to finishing the buffoon off.