Damon Mcknight
In Europa Universalis IV, Austria can enter into a personal union with Hungary. This can occur when Hungary gets a Habsburg heir, who will either get an heir of their own when they turn 15, or die without an heir. If the heir dies, Hungary can choose a noble to become king, which gives Austria the restore PU CB on Hungary, allowing them to enforce the union through war.
| Characteristics | Values |
|---|---|
| How does it start? | Hungary gets a Habsburg heir, who dies when he turns 15 |
| What happens next? | Hungary gets to choose a new king, either a Hunyadi or a Habsburg |
| What if they choose a Hunyadi? | Austria gets a "Restoration of Union" CB and can enforce the union through war |
| What if they choose a Habsburg? | A personal union is formed |
What You'll Learn
The heir of the Habsburg dynasty
Hungary will almost always get a Habsburg heir, but if they do not, an event will fire which kills the heir and Hungary will choose a noble to become king. This gives Austria the "restore PU" CB and allows them to enforce the union through war.
If the heir or the regent (Janos) die before the heir comes of age, the event won't trigger and the normal rules for having no heir apply. This usually results in a noble from a dynasty they are married to becoming king.
Austria can get similar missions for Bohemia, Hungary, and Burgundy. Upon accepting the mission, you get the "restore PU" CB on the respective nation and can enforce the union through war.
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restore PU CB
In *Europa Universalis IV*, Austria can get a mission to form a personal union with Hungary. This mission gives Austria the "restore PU" CB on Hungary, allowing them to enforce the union through war.
To get this mission, Austria must be bigger than Hungary and neighbour them. When the mission is accepted, the "restore PU" CB is gained on Hungary.
Hungary will almost always get a Habsburg heir. When this heir turns 15, he will either get an heir of his own or, if he has none, an event will fire which kills him. If Hungary then chooses a Hunyadi, Austria gets a "Restoration of Union" CB. If Hungary chooses a Habsburg, they will form a union with Austria.
If the heir or the regent (Janos) die before the heir comes of age, the event won't trigger, and the normal rules for having no heir apply.
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Enforcing the union through war
In *Europa Universalis IV*, Austria can enforce a personal union with Hungary through war. This can be achieved through a mission, which gives Austria the "restore PU" CB on Hungary. To get this mission, Austria must be bigger than Hungary and neighbour them.
The mission is based on a Hungarian event chain. Hungary starts with an interregnum and gets a Habsburg heir after a few years. When that heir comes of age, he automatically dies, and Hungary gets the choice of either directly entering into a PU under Austria (which is very unlikely) or choosing a noble to become king. If Hungary chooses a noble, Austria gets the "restore PU" CB, allowing them to enforce the union through war.
If either the heir or the regent (Janos) die before the heir comes of age, the event won't trigger, and the normal rules for having no heir apply. This usually results in a noble from a dynasty they are married to becoming king.
Alternatively, Hungary can choose a Hunyadi, in which case Austria gets a "Restoration of Union" CB, or they can choose a Habsburg and form a union with Austria.
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Restoration of Union CB
The Restoration of Union CB is an OP mission. It can be acquired by senior partners of a personal union if the junior partner breaks free. England can gain this CB on France through the Occupy Paris mission. Austria can gain this CB on Bohemia through the 'Bohemia must accept Austrian overlordship' mission, and on Hungary through the 'The decline of Hungary' mission. The restoration union CBs expire after 20 years.
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The Hungarian event chain
The event chain could get rid of the 'Decline of Hungary' event that gives Austria claims on most of Hungary and fires if the Ottomans own a Hungarian province in the Alföld or Transdanubia regions. It could also rework Hungarian provinces since they are completely inaccurate.
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Frequently asked questions
When the heir of the Habsburg dynasty comes of age, he automatically dies and Hungary gets the choice of either directly entering into a personal union under Austria (very unlikely), or choosing a noble to become king, which gives Austria the "restore PU" CB on Hungary, allowing them to enforce the union through war.
If either the heir or the regent (Janos) die before the heir comes of age, the event won't trigger, and the normal rules for having no heir apply (usually resulting in a noble from a dynasty they are married to).
Austria must be bigger than Hungary and neighbour them to get a chance of getting the mission.
