That even works for folks who have much more Anglo names: after all we tend to call Brian Peter George St. John le Baptiste de la Salle Eno plain old Eno. That is if we call him anything at all (alas, few people could name him as U2's most famous producer, let alone one of the geniuses of music since 1970).Perhaps it's because he was never married to Xavier Cugat?Oh, and if Eno married John Lennon's ex, she'd be Yoko Ono Eno.
It's a stage name, not a "nickname"."if Eno married John Lennon's ex, she'd be Yoko Ono Eno."She's not his "ex", she's his widow. And she would be Yoko Ono Lennon Eno -- or, far more likely, simply Yoko Ono. (Have you heard of feminism? Did you know Yoko Ono is/was a prominent and influential feminist?)