Alanna-H2, not so much.
But don't forget FEI. And I'm not really sure Delvin and Hireshmont "reconciled." Hireshmont had a major role in the Meridian secession... just because he tossed himself on the pyre of humanity doesn't mean there was reconciliation.
Or consider Cyrilos v. Delvin (that was Delvin, right? Or was it a different Anaris?)
No, by the time Cyrilos came to Riombara, Delvin was retired. I think it must be Liara that met him.
My reading of the point of this thread, though, is actual full-on family rivalries, where any member of one meeting a member of the other will hate on sight.