One King to Rule!
- is Poland.
Not playing as a released vassal.
The player’s country:
- is an absolute monarchy.
This achievement is rewarded to players who manage to reform Poland from an elective monarchy, characterized by its dependence on the Sejm and frequent changes of dynasty, to an absolute monarchy where the King has absolute rule, passing the throne to their hereditary heir upon death.
The title and icon are likely a reference to "One Ring to Rule [them all]" from J.R.R. Tolkien's popular series The Lord of the Rings.
The standard way to gain this achievement is via an event chain that begins by selecting the “We need a Jagiellon!” option, which also puts Lithuania in a personal union under Poland. Immediately upon selecting this option, the ‘Elective Monarchy in Poland’ event will trigger. Select the only option, “We'll trust the Sejm!”, to activate the elective monarchy government type.
Next, the ‘The Pacta Conventa and the Henrykian Articles’ event must be triggered. This can happen while Poland is still under an elective monarchy and a King is elected who has a skill of 0 or 1 in any of the three monarch point categories. For example, a 1/6/6 or a 5/4/0 would trigger the event. This can be manipulated by keeping an eye on the possible heirs and building relations with countries who are attempting to provide a suitable heir. Doing so will give a reasonable chance that a suitable heir will be elected during the 156 years until the next series of events can fire. A side benefit to this strategy is that it will not be necessary to spend prestige on ensuring that the Polish heir succeeds (unless, of course, a qualifying heir spawns). In the meantime, continue to build the kingdom, wage wars, make and break alliances, and enjoy the historically interesting game play that Poland offers.
Forming the Commonwealth does not invalidate this achievement. Feel free to enact the decision to do so if it fits in with the other goals of the campaign.
The next step comes when the ‘The Struggle for Royal Power’ event triggers, no earlier than 1600. This will only happen if ‘The Pacta Conventa’ has occurred. Select the “Wage a war on the Nobility” option and put the noble rebels to the sword. Be aware that selecting this option will affect stability by −3 and cause noble rebels to spawn in the capital and elsewhere. Prepare before hand by stockpiling admin points and ensure that the army is fit to fight a sizable rebellion.
What follows is, put simply, a very tumultuous time for Poland / Commonwealth. Keep the army topped off at force limit and all forts activated. In addition to the following events, the +10 unrest will assure that rebellions are constantly springing forth.
First, the Konfederacja event will trigger, providing two options:
- “Try to negotiate with the konfederacja” will grant −2.00 unrest and +25% idea cost for the remainder of the current King's rule.
- “Reject their demands” will incite another rebellion similar in magnitude to The Struggle for Royal Power.
Either option can be chosen, keeping in mind that the current ruler will not be replaced when this chain ends and the government type is changed.
Once that is dealt with, after a bit of time has passed, Sandomierz Rokosz will trigger. Again, two options:
- “Confer with the rebel leaders” costs −100 administrative power, −100 diplomatic power, −100 military power, and changes the opinion of every neighboring country by −25 by way of the Negotiated with Rebels modifier.
- “Suppress the rebels” will incite yet another rebellion and improve the opinion of every neighboring country by +25 by way of the Suppressed Rebels modifier.
Again, it makes no difference which option is chosen. Neither of these events is required to progress the event chain. Rather, they are side effects of waging war on the nobility. In fact, they only happen with a Polish primary culture.
Somewhere in the area of three years after the war against the nobility began, as long as no rebels currently control any provinces, the ‘Pacify the Sejm’ event will trigger, thus completing requirements of the achievement by changing the government type to an Despotic monarchy. Additionally, the negative modifiers from ‘The Struggle for Royal Power’ and ‘The Pacta Conventa’ events are removed and the player is granted 3 stability, 50 legitimacy, and 50 prestige. In older versions of EU4, you must manually switch over to 'Administrative monarchy' for the achievement to unlock. (This last line was edited due to the absolutist monarchy not being present in EUIV versions after 1.21 or so.) In newer versions of EU4, the game automatically switches you to administrative monarchy, but you must earn 50 Absolutism to get the achievement.