Big problem with either Aragon or Toulouse... neither of them have an heir of eligble age.. or someone of marriagable age that isn't married already... looking elsewhere,,,but it won't have much effect as if it isn't someone in France...
I'm going to give the readers a few options.
1) Continue the timeline being vaque on Eleanor and possible until I find a suitable marriage for Eleanor.
2)Have Eleanor not remarry, having her daughters split the inhiertance.
3) Finsh up the reaseach, and then continue the timeline...
Your choice...