I meant it as 'the balance of power shifting to Greece' instead while Sicily is still very much part of the empire which allows the Lascarids to tax people and make money off of them.
Which can't happen as long as the Angevins rule in Naples and half of Sicily, and before have signifcantly expanded further eastwards (
ie direct control of Constantinople and a good portion of western Anatolia, an opportunity that won't arise before the Timurid invasion, so mid 15th century at best). The Ionian sea is the the core of the Lascarid realm, at the crossroads of communication lines between Sicily, Calabria, and Greece, and with all the trade routes it encompasses. Syracuse is bound to remain the capital as long as the Ionian sea remains the core of the Despotate.
Athens only start to make sense if that core moves east; for the time being, it's just going to be the regional/secondary capital of Lascarid Greece.
Also Louis the great is a more important ally that the Lascarids can't afford to piss off (and seriously a marriage between a daughter of Louis and Alexandros would be better) considering that other than Benevento and Aquila the Lascarids wouldn't want much (they could claim the whole thing due to prior claims but otherwise it's pointless).
Not as if they did think about avoiding to piss off the Serbs back in 1317.
The same reasoning Ioannis applied back then might as well apply to the Hungarians.
No common border (
the Serbs and the Byzantines stand between them and Lascarid Greece), and not much of a navy (
my understanding is they otherwise relied on Venetians, with whom they at times disputed control of Dalmatia) to threaten the Lascarids.
Without benefit of hinsight, there is nothing that make the Hungarians any worth caring about as an ally or an enemy for the Lascarids. The Serb threat is not yet a thing, not even yet the Lascarids' (
again, Byzantine Macedonia and Thessaly stand between Skopje and Larisa).
For the time being, those the Lascarids do bother about, that affect their interest in one way or another : the Angevins of Naples, the Hospitalers, Genoa and Venice, Aragon, Constantinople, the Turkish beyliks on the Ionian coast. And that's pretty much it for the time being I'd say.
Frankly the Lascarids must be pretty popular to the common Greek peasant in the Balkans. They gave been reversing centuries of frankokratia
That sounds like way more than the 128 years from the sack of Constantinople to the surrender of Larisa...
Besides, there are still the Angevin holdings in southern Epirus/Aetolia/Arcanania.