Alright, so here's your challenge.
Have, by the 19th century, a 'Greater Iberia' movement, similar to the Scandinavian movement and/or Unification movements.
Secondly, try to not drastically change history to a point where Europe is fundamentally different, IE keep England/UK and the
national identities of the Iberians up until the movement and the various other historic European nations.
Greater Iberia being defined as what is Portugal, Spain and France.
Have, by the 19th century, a 'Greater Iberia' movement, similar to the Scandinavian movement and/or Unification movements.
Secondly, try to not drastically change history to a point where Europe is fundamentally different, IE keep England/UK and the
national identities of the Iberians up until the movement and the various other historic European nations.
Greater Iberia being defined as what is Portugal, Spain and France.