Duke and Duchess of Cambridge?

[O'Callaghan]

My emboldening
It's not entirely obsolete, it's unusual perahps but I still know of many wives who are known as Mrs - husbands name,My mother generally prefers to be known in that fashion, although she is in her late seventies.
No one laughs at that form of address, and hardly social death either

My family would find it downright quaint, and they would laugh at it. It's sexist as well.