This is a list of Hungarian monarchs; it includes the grand princes (895–1000) and the kings and ruling queens of Hungary (1000–1918).
The Árpád dynasty ruled the Carpathian Basin for four hundred years, influencing almost all of Europe through its extensive dynastic connections.
The Habsburgs tried several times to unite all Hungary under their rule, but the Ottoman Empire prevented that by supporting the Eastern Hungarian Kingdom.
King John I died in 1540, the Habsburg forces besieged Buda the Hungarian capital in 1541, Sultan Suleiman led a relief force and defeated the Habsburgs, the Ottomans captured the city by a trick during the Siege of Buda and the south central and central areas of the kingdom came under the authority of the Ottoman Empire, therefore Hungary was divided into three parts.
The Principality of Transylvania was a semi-independent state, and a vassal state of the Ottoman Empire, it continued to be part of the Kingdom of Hungary in the sense of public law, John Sigismund's possessions belonged to the Holy Crown of Hungary, and was a symbol of the survival of Hungarian statehood.