Analysis of information sources in references of the Wikipedia article "Unowned property" in English language version.
On 6 March 1351, Edward III conferred on his cousin Henry, fourth Earl of Lancaster, the dukedom of Lancaster. In the same charter he raised the county of Lancaster to a county palatine [...] The profits of justice belonged to the new duke. The King['s] ... escheator for the north-western counties of England was instructed to take no further action in the Palatinate. The Duke appointed his own escheator, who presumably accounted to the Duke at his Exchequer.
