A Jewish Tudor? This is gonna be a strange one...
To be fair, Edith Tudor-Hart was only a Tudor through marriage. Born in Austria as Edith Suschitzky, she married an Englishman and immigrated to England to avoid persecution for being a Jew and a communist.
That communist part is rather important; after her move to England, Tudor-Hart, who worked as a photographer, took on a new line of work. She was essential in the Cambridge Spy Ring: the recruitment of five Englishmen to spy for the Soviet Union. (Her code name? Strangely, "Edith"...) Kim Philby was the most famous one.
Her charges stole information from England and gave them to the Russians. Three of them, including Philby, actually ended up defecting to the Soviet Union, where they saw communism in all its glory. Tudor-Hart retired from spying to run an antique shop.
Being a Tudor was clearly not the strangest thing in her life...