British isles
Ireland
Ulster (no sub-regions):
1 Tirconnell
2 Tyrone
3 Ulster
4 Uriel
Meath (no sub-regions):
1 Louth
2 Drogheda
3 Kilmore
4 Trim
5 Meath
Leinster (no sub-regions):
1 Kildare
2 Dublin
3 Dublin-Bray
4 Kildare-Arklow
5 Wexford
6 Carlow
7 Kilkenny
Munster (no sub-regions):
1 Waterford
2 Tipperary
3 Cork
4 Kerry
5 Limerick
6 Thomond
7 Kilfenora
Connaught (no sub-regions):
1 Connaught
2 Roscommon
3 Breffny
Scotland
The Islessub regions: Orkney, Hebrides, Dalriada, Man)
Orkney (Orkney, Caithness, Sutherland)
Hebrides (Lewis, Skye, Uist)
Dalriada (Mull, Jura, Islay)
Man (Man)
Highlandssub regions: Argyll, Highlands, Aberdeen, Alba)
Argyll (Morvern, Argyll, Arran)
Highlands (Ross, Moray, Nairn, Elgin)
Aberdeen (Banf, Aberdeen, Kincardine, Angus)
Alba (Perth, Stirling, Fife)
Lowland (sub regions: Lothian, Strathclyde)
Lothian (Lothian, Berwick mark, Roxburgh, Selkirk and Peebles)
Strathclyde (Dumfries, Galloway, Lanark, Ayr and Dumbarton)
England:
Cornwall (no sub-regions):
1 Cornwall
2 Devon
Wessex (no sub-regions):
1 Somerset
2 Dorset
3 Hampshire
4 Wiltshire
5 Gloucester
6 Oxford
7 Buckingham
8 Berkshire
Sussex (no sub-regions):
1 Surrey
2 Sussex
Kent (no sub-regions):
1 Kent
Essex (no sub-regions):
1 London
2 Hertford
3 Essex
East Anglia (no sub-regions):
1 Suffolk
2 Norfolk
3 Cambridge
Mercia (sub-regions: East Mercia, West Mercia)
1 East Mercia - Lincoln
2 East Mercia - Huntingdon
3 East Mercia - Bedford
4 East Mercia - Northampton
5 East Mercia - Leicester
6 East Mercia - Notingham
1 West Mercia - Derby
2 West Mercia - Stafford
3 West Mercia - Warwick
4 West Mercia - Worcester
5 West Mercia - Hereford
6 West Mercia - Shorpshire
7 West Mercia - Cheshire
Northumberland (sub-regions: York, Northumberland, Berwick)
1 York Lancashire
2 York Yorkshire
1 Northumberland - Durham
2 Northumberland - Westmorland
3 Northumberland - Cumberland
4 Northumberland - Northumberland
1 Berwick - Berwick
Wales
Dyfed (sub-regions: Dyfed, Seisyllwg, Rwng Gwy a Hafren, Brycheinoig, Morgannwng, Gwent)
1 Dyfed - Pembroke
2 Seisyllwg - Cardigan
3 Seisyllwg - Carmarthen
4 Rwng Gwy a Hafren - Mortimer
5 Brycheiniog - Bohun
6 Morgannwg - Glamorgan
7 Gwent - Gwent
Gwynedd (sub-regions: Gwynedd, Powys)
1 Powys - Flint
2 Powys - Powys
3 Gwynedd - Merioneth
4 Gwynedd - Lincoln
5 Gwynedd - Caernarvon
6 Gwynedd - Angelsey
Isle of Man is a separate region/county
total of 18 regions, 31 sub-regions and 102 "counties"