I love roman late (well, 150 turns, not very late

) units - tagmata, italian mercenaries, gasmulii, flamethrowers. However, I have the worst succession crisis every time I get to turn ~100. Now I have a basileus-usurper, but he was co-emperor for the whole time previous guy was in charge - why is he usurper??? He had 10+ loyalty, no negative traits beyond heir presumptive. What is even worse, both of his sons are bastards (I needed an alliance with Pisa against Venice, but their princess was really gross

), so all the hard work I put into crowning previous guy is now done for. Killing off bastards is a poor choice I assume, so probably have to suffer through, drop a couple provinces in outermer and serbia, and groom my bastard and next heir (here's to hope the bastard not gonna make more bastards).