I'd say Roberta Close, (kind of an older generation but she'd definitely fit the bill) April Ashley (although her case ended badly because she got divorced and in the homophobic days the court ruled her a man). Jenny Hilodauki isn't a wife per se but in her heyday was with powerful men in Greece and the wider world. I think nowadays a "trophy wife" type may be successfully stealth. Look on r/transgoddesses and so on, there are giga-stacy trans women out there. Just know that look plays a role, as well as skill and long effort.