except Robin-M + Lucina (but as Robin F obviously unobtainable, duh), because that would create the only third-generation child possible - and is beyond OP
the only other potential mother for Lucina that comes even CLOSE is Olivia (spoilers~), and even then Female Robin is much better. especially the way they fell in love xD. also, Aether Rightful King Morgan, you'll understand when it's time
