Crown land
Crown land is an area belonging to the monarch, the equivalent of an entailed estate that passed with the monarchy and could not be alienated from it. Today, in countries where the British monarchy is the head of state, the term is used to referred to public land. In Britain, the hereditary revenues of Crown lands provided income for the monarch until the start of the reign of George III when the Crown Estate was surrendered to the Parliament of Great Britain in return for a fixed civil list payment – the monarch retains the income from the Duchy of Lancaster. In the Austro-Hungarian Empire and its predecessor the Austrian Empire Crown lands were alternative administrative units to duchies, as in the Kingdom of Poland and its successor, the Polish-Lithuanian Commonwealth.

http://lexbook.net/en/crownland

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Note added at 11 hrs (2015-02-01 14:34:10 GMT)
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Austria

From the late 18th century onwards, the territories acquired by the Austrian Habsburg Monarchy were called crown lands (German: Kronländer). Initially ruled in personal union by the House of Habsburg-Lorraine, they played a vital role as constituent lands of the Habsburg nation-building and ultimatively were re-organised as administrative divisions of the centralised Austrian Empire established in 1804.

By the 1861 February Patent, proclaimed by Emperor Franz Joseph I, the Austrian crown lands received a certain autonomy. The traditional Landstände (estates) assemblies were elevated to Landtage legislatures, partly elected according to the principle of census suffrage.

After the Austro-Hungarian Compromise of 1867, the Kingdom of Hungary (with the Principality of Transylvania), the Kingdom of Croatia-Slavonia and Fiume became constituent parts of the Lands of the Crown of Saint Stephen (Transleithania); ruled in real union with the remaining Austrian crown lands (officially: "The Kingdoms and Lands represented in the Imperial Council") of Cisleithania until the disintegration of the dual monarchy in 1918.
http://en.wikipedia.org/wiki/Crown_land