Forming Austria-Hungary: Strategies For Success In Eu4

In Europa Universalis IV, players can form a personal union (PU) between Austria and Hungary. This can be achieved through the mission tree, which may be behind a DLC. Alternatively, players can try to get Austria's starting ruler to die early, while Ladislaus Postumus is still alive and hasn't been kicked out of Budapest, which will automatically trigger the Archduke of Austria, King of Hungary event and form the PU. Another option is to get a Restoration of Union Casus Belli against Hungary for 25 years through one of Austria's first missions, which requires the combined total development of Austria and its subjects to be equal to or greater than that of Hungary, and be at least 200.

Getting Austria's starting ruler to die early

To get Austria's starting ruler to die early in *Europa Universalis IV*, you need to ensure that Ladislaus Postumus is still alive and hasn't been kicked out of Budapest. This will allow you to get the PU with Hungary through the event "Archduke of Austria, King of Hungary", as the same person will be ruling both countries.

To achieve this, you can try to force a PU over Bohemia early in the game, before they can gain any powerful allies. This can be done by completing a couple of Austria's early missions. Alternatively, you can get a Restoration of Union Casus Belli against Hungary for 25 years through one of Austria's first missions. To complete this mission, the combined total development of Austria and all its subjects must be equal to or greater than that of Hungary, and be at least 200. There are numerous ways to approach this objective, and completing Austria's early missions to force a PU over Bohemia can help you achieve this.

Praying to Fortuna

You can also get a Restoration of Union Casus Belli against Hungary for 25 years through one of Austria's first missions. All that is required to complete this mission is for the combined total development of Austria and all its subjects to be equal to or greater than that of Hungary, and be at least 200. This can be accomplished by doing a couple of Austria's other early missions to force a PU over Bohemia.

If you are not willing to do this, you can try to get a natural PU through marriage, or just restart the game.

Getting a Restoration of Union Casus Belli against Hungary

To get a Restoration of Union Casus Belli against Hungary, you need to complete one of Austria's first missions. The requirements for this mission are that the combined total development of Austria and all its subjects is equal to or greater than that of Hungary, and is at least 200. This can be achieved by completing some of Austria's other early missions to force a PU over Bohemia. This is best done early on, before Bohemia can get any powerful allies.

One way to get the PU with Hungary is to get Austria's starting ruler to die early, while Ladislaus Postumus is still alive and hasn't yet been kicked out of Budapest. This will automatically get you the PU with Hungary through the event "Archduke of Austria, King of Hungary" because the same person is ruling both countries.

Another way to get the PU is through the mission tree. If the mission tree is behind a DLC, you can buy that DLC and then use the mission tree to PU Hungary.

Lastly, if all else fails, you can get the Restoration of Union Casus Belli against Hungary for 25 years through the method described above. This is a reliable way to get the PU, as it only requires you to have a combined total development of at least 200 with all your subjects.

Hope for a natural PU through marriage

One way to form Austria-Hungary in *Europa Universalis IV* is to hope for a natural personal union (PU) through marriage. This can be a challenging strategy, as AI Austria and AI Hungary usually end up in a union, but when you are playing as Austria, it can be difficult to achieve this.

One player suggests getting Austria's starting ruler to die early, while Ladislaus Postumus is still alive and hasn't yet been kicked out of Budapest. This will automatically give you the PU with Hungary through the event "Archduke of Austria, King of Hungary", as the same person will be ruling both countries.

Another option is to get a Restoration of Union Casus Belli against Hungary for 25 years through one of Austria's first missions. To complete this mission, the combined total development of Austria and all its subjects must be equal to or greater than that of Hungary, and be at least 200. This can be achieved by doing a couple of Austria's other early missions to force a PU over Bohemia.

If you are not willing to use the mission tree, you may have to rely on luck to form the PU through marriage.

AI Austria and AI Hungary usually end up in a union

Another way to get a union is to get a Restoration of Union Casus Belli against Hungary for 25 years through one of Austria's first missions. All that is required to complete this mission is for the combined total development of Austria and all its subjects to be equal to or greater than that of Hungary, and be at least 200. This can be accomplished by doing a couple of Austria's other early missions to force a PU over Bohemia.

You can also PU Hungary through the mission tree. If the mission tree is behind a DLC, you can buy that DLC and then use the mission tree to PU Hungary. Alternatively, you can hope for a natural PU through marriage, or restart the game if you are not successful.

Frequently asked questions