Marcus Aurelius Antoninus Augustus
Marcus was too young and initially controlled by her mother who was the force behind Marcus getting pushed to the role of Emperor.
Marcus was the wrong race (Syrian).
They were also of ... dubious heritage.
Marcus was only cousin to the previous Emperor Marcus Aurelius Antoninus I (Caracalla).
This fake heritage helped swing many of the traditional people in the military and the Senate to back Marcus as Emperor.
The main reasons:
Before we get into this we should talk about Roman societies view of homosexuality as it is different from the modern day.
Society had something of a 'boy fetish'.
Latin doesn't have definitive terms for hetero and homosexuality.
Social roles were based on the idea of men being active/dominant/masculine & women being passive/submissive/feminine.
Boys were seen as passive/submissive/feminine and only expected to become active/dominant/masculine when they became men.
It's very different from today to say the least.
It was still socially acceptable if you were an adult male bottom and passive/submissive/feminine; you fit into society's expected roles.
You could not be a bottom and be active/dominant/masculine.
Three times to women and twice to men.
The first man was the athlete Aurelius Zoticus. Marcus' last and only adult marriage was to another man called Hierocles.
In addition Marcus was expected to be Emperor, leader, active/dominant/masculine - MALE in all capitals. That was her role, one she couldn't meet.
The fake hereditary, wealth and the the 'sexy boy' convinced the legion to support Marcus' bid as Emperor.
No-one knew that wasn't possible for Marcus until after support had been declared.
She had no desire to fit into the Roman male role of active/dominant/masculine.
Marcus was, like many Emperors, killed by her own bodyguards, the Praetorian Guard.
After which Roman news & history has to legitimise the new Emperor.
Why do we see so many Roman Emperors as 'mad'? False history.
It's created to support the present not accurately document the past - that's history.
“The name Elagabalus is branded in history above all others [because of his] unspeakably disgusting life.” – Barthold Georg Niebuhr, 1776 – 1831
The taboo was behaviour, not sexuality or identity.
"He would go to the taverns at night wearing a wig, woman's clothes and makeup and ply the trade of a prostitute."
When we last left her she was Emperor, transgender, pushing a new religion on Rome and unpopular, right?
Well, not quite.
She was unpopular with the military and the Senate, she became popular with the masses.
She also tackled the economic crisis in Rome by cutting the amount of silver used in currency and removing the devalued Antoninianus.
We know this as historical records from the time note that Marcus referred to herself as an Empress, Priestess, Wife.
Marcus is also documented as offering a significant monetary reward for any physician that could provide her with female genitalia:
The Senate refused, Hierocles was an ex-slave.
No not that Severus.
Marcus argued that the people loved her, that she was fixing the economy and unifying Rome.
Alexander said I'm all man, he won.
All because of toxic masculinity and the plotting of a grandmother to keep the family on top even if it meant killing sections of the family off.
4. History lies to you all the time