The strong cultural interest in British castles persisted in the 20th century. In some cases this had destructive consequences as wealthy collectors bought and removed architectural features and other historical artefacts from castles for their own collections, a practice that produced significant official concern. Some of the more significant cases included St Donat's Castle, bought by William Randolph Hearst in 1925 and then decorated with numerous medieval buildings removed from their original sites around Britain, and the case of Hornby, where many parts of the castle were sold off and sent to buyers in the United States. Partially as a result of these events, increasing legal powers were introduced to protect castles – acts of parliament in 1900 and 1910 widened the terms of the earlier legislation on national monuments to allow the inclusion of castles. An act of Parliament in 1913 introduced preservation orders for the first time and these powers were extended in 1931. Similarly, after the end of the Irish Civil War, the new Irish state took early action to extend and strengthen the previous British legislation to protect Irish national monuments.