See: List of castles, Castles in England, Castles in Scotland, Castles in Northern Ireland
Anglesey
Clwyd
Dyfed
Glamorgan
Gwent
Gwynedd
Powys
South Glamorgan
West Glamorgan
... Monaco Grand Prix, held there annually, was first organized under the auspices of Prince Louis II through the establishing of the "Automobile Club de Monaco." In 1929[?], ...