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
... Denny Hulme[?], (New Zealand) 1968 - Graham Hill, (United Kingdom) 1969 - Graham Hill, (United Kingdom) 1970 - Jochen Rindt, (Austria) 1971 - Jackie Stewart[?], (United ...