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Kingdom rankCastile
Primary culture
Castilian (Iberian)

Capital province
Toledo (219)

Feudal MonarchyGovernment monarchy.png

State religion

Technology group
WesternWestern technology group
Spanish ideas
Traditions.png Traditions:
+15% Morale of armies
+1 Missionaries

Discipline.png The Reconquista

+5% Discipline

Missionary strength.png Spanish Inquisition

+2% Missionary strength

Idea claim colonies.png Inter Caetera

Can fabricate claims on any overseas province, provided it is overseas for its owner
+1 Colonists

Papal influence.png Devout Catholicism

+2 Yearly Papal influence

Provincial trade power modifier.png Treasure Fleet

+10% Provincial trade power modifier
+15% Global tariffs

National sailors modifier.png A Spanish Armada

+10% National sailors modifier
+10% Heavy ship combat ability

Prestige.png Siglo De Oro

+1 Yearly prestige

Idea bonus.png Ambitions:

+25 Global settler increase
For the area, see Castille (area).

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.


Main article: Spanish events

Iberian Wedding[edit]

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[edit]

Main article: 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.

Italian Ambition[edit]

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.


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.

Execute decision.pngForm Spanish Nation Militarily

Global expansion in newly discovered areas and the establishment of colonies is transforming Spain into one of the most powerful and wealthiest nations of our time. Spanish explorers are constantly moving into new territories and extending our borders. Immense amounts of gold and silver are being brought back to our motherland, filling the coffers of our state Treasury.

Potential Requirements Allow
  • Spain Spain does not exist.
  • has an administrative technology of at least level 10.
  • is not a subject nation.
  • is not at war.
  • Is not a nomad nation.
  • A Muslim nation does not own a province in Iberia.
  • Owns the core Province icon.png provinces:
    • Barcelona (213)
    • Zaragoza (214)
    • Castilla La Vieja (215)
    • Salamanca (216)
    • Sevilla (224)
    • Toledo (219)
    • València (220)
    • Granada (223).

  • Gain “Increased Centralization” modifier for 20 years:
    • -0.05 Autonomy.png Monthly autonomy change
    • +1 National unrest.png National unrest
  • If a member of the Imperial authority.png HRE and not an elector / emperor, all own provinces are removed from the HRE.

Execute decision.pngForm Spanish Nation Diplomatically

Global expansion in newly discovered areas and the establishment of colonies is transforming Spain into one of the most powerful and wealthiest nations of our time. Spanish explorers are constantly moving into new territories and extending our borders. Immense amounts of gold and silver are being brought back to our motherland, filling the coffers of our state treasury.

Potential Requirements
  • Is Castile Castile.
  • owns Toledo (219).
  • If controlled by the AI:



1444 Castile is a very easy nation to play if you want to also try your hand at exploration and colonization. Their easy status comes from their location events (Iberian wedding) and the proximity to the New World.

Easy Way

The easy way is to wait and play it safe take over Granada, expand into the new world then take over Portugal when you have the PU over Aragon then onto France, Genoa trade node etc., this is not hard and should be done only if you are a new player because it gives you a very relaxed playthrough.

The hard way

The hard way is a bit more complicated and is recommended for more advanced players.

  • first attack England for the lands in southern France, they will call in Portugal, separate peace them, first put units in the English lands so that the sieges will yours then focus on Portugal, after peace out England for those provinces and the extras that you are going to give France(make sure that England still has lands in France so that the friction will still continue) then release Gascony.
  • attack Grenade spare none.
  • attack Aragon for humiliate
  • attack Portugal take the centers of trade
  • ally Burgundy then attack France for Gascony cores

Now it should be 1470 with luck you will have a PU over Aragon/Naples, 1/3 of Portugal and 5/7 of Gascony with almost a colonial nation in Brazil. What follows is a broad view:

  • continue your advance into France and Portugal, feed France lands to Aragon(when they reach 31 cities stop then wait for tech 10)
  • feed The Papal States to Naples(find a way to get CB) except Rome(make sure you are the papal controller and the pope is somewhat young)
  • attack the rest of Italy when they leave the HRE

Now it is 1530 France is dead or dying the next target is HRE leadership, Ottomans, the American natives and Africa.

After these conquests you should be fat and have 0 concerns


Isn't this the way to India? icon
Isn't this the way to India?
Discover the Americas as Castile or Spain.
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