Esterházy

200px|thumb|right|The Eszterházy arms from the 14th to 15th centuries 200px|thumb|The arms of Paul I, Prince Esterházy (1635–1713) The House of Esterházy, also spelled Eszterházy (), is a Hungarian noble family with origins in the Middle Ages. From the 17th century, the Esterházys were the greatest landowner magnates of the Kingdom of Hungary, during the time that it was part of the Habsburg monarchy and later Austria-Hungary. During the history of the Habsburg Empire, the Esterházy family were consistently loyal to the Habsburg rulers. The Esterházys received the title of Graf (Count) in 1626, and the Forchtenstein line received the title of Fürst (Prince) from the Holy Roman Emperor in 1712. The Esterházy family’s estate is today Austria’s largest private landholding.==History== The Esterházys arose among the minor nobility of the northern part of the Kingdom of Hungary (today's southwest Slovakia), originally a branch of the Salamon clan (de genere Salamon) by the name Zerházi (de Zerhásház / de Zyrház / de Zyrhas). Their first known ancestor was Mokud (Mocud) from the Salamon clan, who was a military serviceman and landowner in the Csallóköz region of Western Hungary (today Žitný ostrov in southwestern Slovakia), and Pristaldus, a judicial office-holder in the court of Béla III of Hungary.

The name Esterházy was first used by Benedict Zerhas de Zerhashaz (1508–1553), who in 1539 took over the wealth of his wife, Ilona Bessenyei de Galántha. Their son, Ferenc Esterházy (1533–1604) inherited the coat of arms and title of his mother and the full surname of the family became Eszterházy de Galántha, Galanta being a small town east of Bratislava (, ), now capital of Slovakia.