Dual Monarchy

Dual Monarchy is when a monarch or an royal family rules over two or more sovereign states, where each of the states have its own trade bloc and combines its military, even though each state rules itself. The powers of the monarch can be limited or absolute.

[[File:Cball-AustriaHungary.png]] Austria-Hungary [[File:Cball-Hungary.png]][[File:Habs.png]]
The Austro-Hungarian Empire was the most famous dual monarchy in history, formed with the Austro-Hungarian Compromise of 1867, which made the  Kingdom of Hungary a sovereign state, separated from the  Austrian Empire, with both states ruled by the same family. The Union was later disolved after World War I, in 1918.

[[File:Cball-Saudi.png]] Kingdom of Hejaz and Nejd [[File:Cball-Hejaz]]
The Kingdom of Hejaz and Nejd was and absolute dual monarchy formed in 1926 by the  Kingdom of Hejaz and Sultanate of Nejd, ruled by Abdulaziz. The Union would later form, in 1932, the Kingdom of Saudi Arabia.

[[File:Cball-Spanish Empire.png]] Iberian Union [[File:Cball-PortugalKingdom.png]]
The Iberic Union was a union between the  Spanish Empire and the  Kingdom of Portugal, caused by the Portugal Succesion Crisis of 1580, making Philip II of Spain, in the same year. The union was later disolved in 1640 after the Portuguese Restoration War, making Portugal independent.

Relationships
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Wikipedia

 * Dual monarchy
 * Austria-Hungary
 * Kingdom of Hejaz and Nejd
 * Iberian Union