They are alternatively known as ancient counties or traditional counties.
The censuses of 1891, 1901 and 1911 provided figures for the "ancient counties".
In some areas ancient counties have been abandoned for local government use and then later revived.
It was around this time that the ancient counties which made up modern Cumbria came into existence.
It is in the ancient county of Westmorland.
It roughly corresponds with the ancient county of Périgord.
The 39 historic, ancient or traditional counties, developed from the 12th to the 16th centuries, though many of the specific areas are much older.
However to minimise any confusion, it was agreed that records from these areas should remain within their ancient county.
It was formerly in the ancient county of Merionethshire.
As this suggests, it is in the ancient county of Westmorland.