I'm about to go dumpster diving (aka looking through text dumps of the games), but here's some stuff beforehand:
Linda was not one of the five mages exiled together - Aimee was, though.
X is much younger than those five, possibly even born in Exile.
Okay, I'd revise my original post to organize the ages like this:
Aimee
Erika?
Rone/Solberg
Erika?
Patrick
This would depend on whether or not Erika was the same mage from skylark vale or not.
EDIT: Aran, what happened to slarty's text dumps? They're gone!