Akbarthegreat
Angel of Junil
I assume that Carthage is long dead so you won't get Carthago to flip to them...
But Rusadir[4-5 tiles W of Carthago] went indie.
I think the new city owner after a civil war is quite random... you doesn't have to have palace or anything there to make sure that you still possess it.
No idea with the Brundisium.. the city on the tip of Iberia right? CMIIW
Nope, NE of the sheep in Italy. The city right at the heel.
BTW, I reloaded, and the second time I collapsed on the same turn and Carthago went Indie. So perhaps it really is random