Transvestism in the late Roman Empire used to used as evidence of it's decline and decay, it's fascinating how the rainbow people have now latched onto it as being some sort of trans golden age.
A few years back I listened to Mike Duncan's history of Rome podcast, and when it came to the middle to later empire, there was the recurring story of some rich entitled narcissist, who's made emperor whether by his family or some other clique, only to discover that he doesn't really connect with the Army, Praetorian Guard, or just the mob, particularly when he can't pay the bribes any more.
Anyway historians of ancient Rome have always been good at fleshing out relatively slight and often unreliable sources, to write all encompassing histories. So I suppose it's only fair that the Trannies get to do the same.