- +15% Morale of armies
- +1 Missionaries
- +5% Discipline
- +2% Missionary strength
- Can fabricate claims on any overseas province, provided it is overseas for its owner
- +1 Colonists
- +2 Yearly Papal influence
- +10% Provincial trade power modifier
- +15% Global tariffs
- +10% National sailors modifier
- +10% Heavy ship combat ability
- +1 Yearly prestige
- +25 Global settler increase
The kingdom of Castile in 1444 is the largest and most influential country in the Iberian peninsula, bordering Portugal, Aragon, Navarra, Granada and (indirectly) Morocco, Tlemcen and France. It is an ideal country to start as a new player to the game.
- Main article: Spanish missions
Castile's missions focus on completing the Reconquista against the Muslim state of Granada and expanding into the New World as it did historically.
This section may contain outdated information that is inaccurate for the current version of the game. The last version it was verified as up to date for was 1.11.
- Main article: Spanish events
Between 1450 and 1530, if neither Castile nor Aragon are vassals and the monarch of one of them is male and the monarch of the other is female, then every month there is a one in twelve chance (8.33%) of this event happening. After it fires Aragon will enter in a personal union led by Castile.
Castilian Civil War
If Castile is in a regency before 1500, then there is a chance that a special civil war disaster will be generated. Castile will have to choose between supporting the adviser Álvaro de Luna, and thereby face a noble rebellion that might be backed by neighboring Aragon or Navarra, or accept the demands to end unwanted noble influences and face a loss of stability.
If both Castile and France own provinces in Italy between 1490 and 1590, they will be able to claim each other's lands, reflecting the Italian Wars that consumed the attention of these two rivals in this period. This event will lead to worsened relations between the nations and a greater likelihood of war.
This section may contain outdated information that is inaccurate for the current version of the game. The last version it was verified as up to date for was 1.12.
Castile's only non-generic decisions involve forming Spain. Spain can be formed either militarily, by conquering and coring most or all of Aragon, or diplomatically, by integrating Aragon if it is a vassal or junior personal union partner, which is likely due to the "Iberian Wedding" event.