You could also try Michael, Doux of Epirus in the Latin Empire start.

It's a very tough game if you start at the Latin Empire bookmark, akin to Antioch or El Cid. It's a bit easier if you start about 20 years later once the Latin Empire breaks up into micro-states, but still rather difficult as you have to contend with whoever wins out over the Byzantines or the Seljuks.

I've been playing a game as them myself. About a hundred years in and have formed the Kingdom of Greece. Maybe I'll put up a screenshot later today.