Azem timeline confusion

[Cleretic]

I hate to say cause you don't ask a woman her age but damn how old do we think Venat may have been? She straight out says that when we fought her in our past life we were less than half her age and also (though this is by their standard) that Emet is even too young to get wrinkles...

Incalculable, because we don't know how Ancients perceive time or how old 'old' is. Hell, basically our only frame of reference for the Ancients' perception of the passage of time is 'days exist and people sleep at night', which isn't exactly a groundbreaking discovery.

But if we were to hypothetically fit Ancient lifespans to the same relative length as a human lifespan of '100 years-ish' (which, mind you, also enforces an unwilling death on the Ancients which means it's also wrong), maybe she's... I dunno, fifty-ish? Not old old, but old enough to be the unquestionable senior figure in pretty much every group we see her in. It also means there's a decent stretch of time in 'less than half her age' where people are still grown adults.

Alternative answer: she was somewhere over four hundred, because if we take the 'less than half her age' comment to be literal, then we have to assume that 'half her age' is the upper limit of age any player character can be. And that upper limit is viera, with a lifespan of 200-250 years.