As we all know, Phillip II of Spain chose to hold court in Madrid, making the city the de facto capital of the country in OTL. Madrid is certainly a nice location for a Castile-Aragon Spain. It has all the major benefits, like being Not-Toledo and centrally located on the Iberian peninsula.
But let's go back a ways, and link up Portugal and Castile in personal union sans Aragon. (I'm ignoring Navarre for now.) Where does the monarch hold court in the long run? Lisbon, Toledo, Seville are presumably large attractive cities in the realm, but the distance (perceived or actual) involved in royalty staying in or choosing Lisbon or Toledo might introduce frictions in the Spanish union over time.
So other than the previous cities in question, where else might the *Spanish court settle down? Something along the Tagus looks to be a nice compromise geographically, and potentially offers good communications between Lisbon and Toledo. Alternatively, Badajoz or Salamanca could be attractive, for similar reasons.
What other options are there?
But let's go back a ways, and link up Portugal and Castile in personal union sans Aragon. (I'm ignoring Navarre for now.) Where does the monarch hold court in the long run? Lisbon, Toledo, Seville are presumably large attractive cities in the realm, but the distance (perceived or actual) involved in royalty staying in or choosing Lisbon or Toledo might introduce frictions in the Spanish union over time.
So other than the previous cities in question, where else might the *Spanish court settle down? Something along the Tagus looks to be a nice compromise geographically, and potentially offers good communications between Lisbon and Toledo. Alternatively, Badajoz or Salamanca could be attractive, for similar reasons.
What other options are there?