Doukas

So he's brought in...

In the reign of Constantine Dukas, he takes over from Romanus IV.

In fact, it's Constantine or the Dukas family who orders the blinding of Romanus IV.

It's not the Turks who do that because there's a transition of power.

And the problems in Asia Minor are to do with a whole set of other paralysis that are facing the empire at the time.