Wikipedia
Howdenshire was a wapentake and a liberty of England, lying around the town of Howden in the East Riding of Yorkshire.
In the Saxon period, the district was under the control of Peterborough's monastery, but it was confiscated by Edward the Confessor, and then given to the Bishop of Durham by William I of England. It came to operate as an exclave of County Durham, much like Allertonshire, but under the dean of Durham rather than the bishop. This peculiarity was abolished in 1846, but the district is still in use for certain administrative purposes.
Howdenshire was a county constituency in Yorkshire which returned one Member of Parliament (MP) to the House of Commons of the Parliament of the United Kingdom, elected by the first past the post voting system.
It was created for the 1885 general election, and abolished for the 1950 general election.