Bishop's Castle was a borough constituency in Shropshire represented in the House of Commons of the Parliament of the United Kingdom.It was founded in 1584 and was a constituency of the House of Commons of the Parliament of England until 1707, then of the Parliament of Great Britain from 1707 to 1800, and of the Parliament of the United Kingdom from 1801 to 1832. It was represented by two burgesses. The historian Lewis Namier claimed that in the middle of the eighteenth century it was the one notoriously corrupt parliamentary borough in Shropshire.