could you check this sentence?

[Englishlanguage]

Unfortunately, what in the Romantic age remained an ideal figure fossilized within the lines of poetic expression, the age successive to that prefigured (as) the same strong individualism which eventually led to the threat of world totalitariarism.

I feel there is something wrong in these sentence but I don't know what I should correct.
What if I add as (in blue)?
In any case, is inversion possible in this case?
In the sentence above there is a construction of this kind:
object - subject - verb
what in the Romantic age ....the age successive to that....prefigured
Is it correct?
Thank you in advance

[Anglika]

I feel the need for more context. It is not easy to identify the problem without knowing what is being discussed. What was it that in the Romantic Age remained an ideal figure, for example.

[Englishlanguage]

I feel the need for more context. It is not easy to identify the problem without knowing what is being discussed. What was it that in the Romantic Age remained an ideal figure, for example.

I meant I feel there is something gramatically wrong.
However, what in the Romantic Age remained an ideal figure refers to the Byronic hero.

[Englishlanguage]

Would this sentence sound better?

The XX century interpreted what in the Romantic age remained an ideal figure fossilized within the lines of poetic expression as a prefigurement of the strong individualism which led to the threat of totalitariarisms.

Maybe this sentence sounds even better than the above one.
In the XX century what in the Romantic age remained an ideal figure fossilized within the lines of poetic expression was interpreted as a prefigurement of the strong individualism which led to the threat of totalitariarisms.