EU5: how to leave or dismantle the HRE (patch 1.4)

In Europa Universalis 5, you leave the Holy Roman Empire by beating the Emperor and enforcing the “Leave the Holy Roman Empire” peace treaty. That clause only exists once the Golden Bull is sealed. If the Bull has still not been enacted by 1400, the patch 1.2 notes say you can walk out without a war.

Dismantling the whole Empire is another matter: no official note consulted gives a recipe. This guide therefore separates what is documented from what comes from player reports.

The text targets Update 1.4 “Rio Salado” and hotfix 1.4.6 of 30 October 2026. The wiki page for patch 1.4 does not mention the HRE, so the rules below come from patches 1.2 and 1.3.

Leaving the HRE: it all depends on the Golden Bull

Open the imperial laws tab first. The Golden Bull law has two outcomes, and that choice decides your exit. According to the laws page on the wiki, Seal the Golden Bull enables the leave treaty and forbids unjustified wars between members. Uncodified Electoral Order leaves elector votes to custom.

The second row rests on a single sentence in the patch 1.2 notes: “You can now leave the HRE when the Golden Bull has not been enacted by 1400”. The note does not describe the steps, and no other source consulted details them. It adds that once the Bull is active, the treaty against the Emperor remains the only way.

On paper, the first case is the most likely one. Patch 1.2 also tells the AI to keep proposing the Bull, precisely because it matters to the Empire. Still, check your own campaign: one player reported in January 2026 a Bull never enacted under the first two emperors, on a version older than that change.

Preparing the war against the Emperor

The wiki is clear: the only way out is a treaty with the leader. A crushing win over a neighbouring prince therefore opens nothing. Four points decide what this war costs you.

• The casus belli. With the Bull sealed, unjustified wars between members are forbidden, so you need a valid reason. One player cites parliament as a possible source, which remains a forum signal.
• The Emperor’s allies. Since the patch 1.2 overhaul, bilateral allies come along when the Emperor accepts an imperial call to arms. Count their armies before declaring.
• Subjugation. Patch 1.2 elects a new Emperor as soon as the previous one is subjugated. Subjugating the holder does not free you: the treaty must then target the successor.
• The timing of conquests. The manual on Paradoxpedia says that taking land from a member multiplies Antagonism by 1.25 for fellow members and by 2 for countries outside the Empire.

In practice, if that multiplier applies to whoever takes the land, it sets a battle order: nibble at your German neighbours before the leave treaty, not after. Check the cost shown in the peace screen before you decide.

Why the option does not appear in the treaty

A Steam thread on leaving the Empire describes a missing clause in December 2025 and January 2026. Those posts predate patch 1.2, but the checklist remains useful.

• The Bull is not sealed. This is the condition written in the law, and the first thing to check.
• The war does not target the Emperor. The treaty is negotiated against the Empire’s leader, and the title may have moved since you declared.
• Your religion differs from the Empire’s. A Lutheran player only saw the option after the Empire turned Lutheran. That is one isolated report, so test it.

If the Bull is stuck, look at Imperial Authority. The law is paid for with that resource, and one player described Authority falling because of illegal land and electors vassalized by France. The risk is staying trapped until 1400, with a Bull nobody can afford.

Exits without war: Italy and the Privilegia

Three situations remove members without a peace treaty.

• A Guelph victory. According to the situations page, every country with its capital in Italy then leaves the Empire. Patch 1.3 bars them from rejoining for 50 years.
• The 1437 stalemate. If neither side has progressed enough, Italian countries that belong to both the Guelphs and the Empire leave both organizations.
• Revoking the Privilegia. Since patch 1.0.5, countries that refuse to swear fealty also leave the Empire. This law comes late, because it requires the previous levels.

Conversely, a Ghibelline victory brings Italian countries outside the south into the Empire. If you play an Italian state, the side you back is effectively an exit decision, with no casus belli against the Emperor.

Dismantling the HRE: what is established

Caution here. No patch note consulted describes a dismantling clause, and the wiki does not cover the subject. What is established comes down to four points.

• The Empire can disappear. The There Can Be Only One achievement asks Byzantium to own Aachen once the HRE no longer exists. Hotfix 1.2.3 names this achievement.
• Imperial Authority is the lever. It runs from 0 to 100 and falls with missing or subjugated electors, heretic princes, subjugated members and land held by foreigners.
• Provinces leave by treaty. Since patch 1.3, removing a province from the HRE is no longer a button: you must enforce it in a peace.
• An interregnum is expensive. The developers announce 1 Authority point lost per month without an Emperor, getting worse if it drags on.

That leaves the most quoted condition. A Steam post from November 2025 claims you dismantle the Empire in a war against the Emperor if half of its territory belongs to outside countries. That is one player, on a launch version, with no confirmation: treat it as a lead, not a threshold.

In practice, the plan that holds is simple. Stay outside the Empire, take land in North and South Germany, vassalize members, then open the peace screen against the Emperor and read the available clauses. The wiki adds, on a page not verified for the current version, 20 Prestige for conquering the last member.

Do not treat that win as final. Patch 1.2.5 mentions Renovatio Imperii, described as forming the HRE, so the Empire could come back under conditions we could not document.

Should you actually leave?

What matters is why you want out. Many players want to rank up: one of them claimed that outside Bohemia, Burgundy, Italy and Lotharingia, you could not go above duchy rank. Patch 1.2 has since added a game rule that sets which countries can become kingdoms inside the Empire. Check it before planning a war.

The crown is the other route. The wiki requires an independent candidate, a monarchy with no regency, an heir and more than half of the votes. If you play a major German power, being elected Emperor often costs less than fighting one.

Leaving is not free to reverse either. The wiki requires the Emperor’s primary religion and a border with a member to join, and patch 1.3 added a base reluctance to joining.

Going further

• All our Europa Universalis 5 articles
• EU5: the best countries for beginners
• EU5: losing money and fixing a shrinking market
• EU5 patch 1.3 Pavia: Italy and the great powers